13125137 has 4 divisors (see below), whose sum is σ = 13152576. Its totient is φ = 13097700.

The previous prime is 13125127. The next prime is 13125169. The reversal of 13125137 is 73152131.

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.

It is a cyclic number.

It is not a de Polignac number, because 13125137 - 2¹² = 13121041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13125107) 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, 12989 + ... + 13962.

It is an arithmetic number, because the mean of its divisors is an integer number (3288144).

Almost surely, 2^13125137 is an apocalyptic number.

It is an amenable number.

13125137 is a deficient number, since it is larger than the sum of its proper divisors (27439).

13125137 is an equidigital number, since it uses as much as digits as its factorization.

13125137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27438.

The product of its digits is 630, while the sum is 23.

The square root of 13125137 is about 3622.8630942943. The cubic root of 13125137 is about 235.8855197420.

Adding to 13125137 its reverse (73152131), we get a palindrome (86277268).

The spelling of 13125137 in words is "thirteen million, one hundred twenty-five thousand, one hundred thirty-seven".