Search a number
-
+
1146975097 = 1378372081
BaseRepresentation
bin100010001011101…
…0111001101111001
32221221020101001011
41010113113031321
54322111200342
6305451353521
740265061502
oct10427271571
92857211034
101146975097
1153948a404
122801528a1
1315381a2b8
14ac489ba9
156aa64717
hex445d7379

1146975097 has 4 divisors (see below), whose sum is σ = 1155347316. Its totient is φ = 1138602880.

The previous prime is 1146975061. The next prime is 1146975103. The reversal of 1146975097 is 7905796411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7905796411 = 55191432469.

It can be written as a sum of positive squares in 2 ways, for example, as 801795856 + 345179241 = 28316^2 + 18579^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1146975097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1146975097.

It is not an unprimeable number, because it can be changed into a prime (1146915097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4185904 + ... + 4186177.

It is an arithmetic number, because the mean of its divisors is an integer number (288836829).

Almost surely, 21146975097 is an apocalyptic number.

It is an amenable number.

1146975097 is a deficient number, since it is larger than the sum of its proper divisors (8372219).

1146975097 is an equidigital number, since it uses as much as digits as its factorization.

1146975097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8372218.

The product of its (nonzero) digits is 476280, while the sum is 49.

The square root of 1146975097 is about 33867.0207871906. The cubic root of 1146975097 is about 1046.7701496915.

The spelling of 1146975097 in words is "one billion, one hundred forty-six million, nine hundred seventy-five thousand, ninety-seven".

Divisors: 1 137 8372081 1146975097