Search a number
-
+
9075149 = 71127819
BaseRepresentation
bin100010100111…
…100111001101
3122002001202122
4202213213031
54310401044
6522302325
7140065106
oct42474715
918061678
109075149
115139326
1230579a5
131b59915
1412c33ad
15be3dee
hex8a79cd

9075149 has 4 divisors (see below), whose sum is σ = 9203040. Its totient is φ = 8947260.

The previous prime is 9075119. The next prime is 9075163. The reversal of 9075149 is 9415709.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9415709 = 25736637.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-9075149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9075119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63839 + ... + 63980.

It is an arithmetic number, because the mean of its divisors is an integer number (2300760).

Almost surely, 29075149 is an apocalyptic number.

It is an amenable number.

9075149 is a deficient number, since it is larger than the sum of its proper divisors (127891).

9075149 is a wasteful number, since it uses less digits than its factorization.

9075149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127890.

The product of its (nonzero) digits is 11340, while the sum is 35.

The square root of 9075149 is about 3012.4987966803. The cubic root of 9075149 is about 208.5857273123.

The spelling of 9075149 in words is "nine million, seventy-five thousand, one hundred forty-nine".

Divisors: 1 71 127819 9075149