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1325349137 = 7189335591
BaseRepresentation
bin100111011111111…
…0011100100010001
310102100212201020002
41032333303210101
510203242133022
6335302455345
744562165440
oct11677634421
93370781202
101325349137
11620141472
1230ba34555
13181772078
14c803cd57
157b54b092
hex4eff3911

1325349137 has 4 divisors (see below), whose sum is σ = 1514684736. Its totient is φ = 1136013540.

The previous prime is 1325349083. The next prime is 1325349143. The reversal of 1325349137 is 7319435231.

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: 7319435231 = 15148473081.

It is a cyclic number.

It is not a de Polignac number, because 1325349137 - 26 = 1325349073 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 1325349137.

It is not an unprimeable number, because it can be changed into a prime (1325349437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94667789 + ... + 94667802.

It is an arithmetic number, because the mean of its divisors is an integer number (378671184).

Almost surely, 21325349137 is an apocalyptic number.

It is an amenable number.

1325349137 is a deficient number, since it is larger than the sum of its proper divisors (189335599).

1325349137 is an equidigital number, since it uses as much as digits as its factorization.

1325349137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189335598.

The product of its digits is 68040, while the sum is 38.

The square root of 1325349137 is about 36405.3448960451. The cubic root of 1325349137 is about 1098.4410801725.

The spelling of 1325349137 in words is "one billion, three hundred twenty-five million, three hundred forty-nine thousand, one hundred thirty-seven".

Divisors: 1 7 189335591 1325349137