15135125 has 8 divisors (see below), whose sum is σ = 18888792. Its totient is φ = 12108000.

The previous prime is 15135121. The next prime is 15135143. The reversal of 15135125 is 52153151.

It is a happy number.

15135125 is nontrivially palindromic in base 12.

It can be written as a sum of positive squares in 4 ways, for example, as 1304164 + 13830961 = 1142^2 + 3719^2 .

It is not a de Polignac number, because 15135125 - 2² = 15135121 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 15135125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15135121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60416 + ... + 60665.

It is an arithmetic number, because the mean of its divisors is an integer number (2361099).

Almost surely, 2^15135125 is an apocalyptic number.

It is an amenable number.

15135125 is a deficient number, since it is larger than the sum of its proper divisors (3753667).

15135125 is an equidigital number, since it uses as much as digits as its factorization.

15135125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121096 (or 121086 counting only the distinct ones).

The product of its digits is 750, while the sum is 23.

The square root of 15135125 is about 3890.3887980509. The cubic root of 15135125 is about 247.3595434735.

Adding to 15135125 its reverse (52153151), we get a palindrome (67288276).

The spelling of 15135125 in words is "fifteen million, one hundred thirty-five thousand, one hundred twenty-five".