315135132025 has 18 divisors (see below), whose sum is σ = 454566351390. Its totient is φ = 216092661120.

The previous prime is 315135131953. The next prime is 315135132061. The reversal of 315135132025 is 520231531513.

It can be written as a sum of positive squares in 3 ways, for example, as 67178937721 + 247956194304 = 259189^2 + 497952^2 .

It is not a de Polignac number, because 315135132025 - 2⁷ = 315135131897 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 128625360 + ... + 128627809.

Almost surely, 2^315135132025 is an apocalyptic number.

315135132025 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

315135132025 is a deficient number, since it is larger than the sum of its proper divisors (139431219365).

315135132025 is a wasteful number, since it uses less digits than its factorization.

315135132025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257253193 (or 257253181 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 31.

Adding to 315135132025 its reverse (520231531513), we get a palindrome (835366663538).

The spelling of 315135132025 in words is "three hundred fifteen billion, one hundred thirty-five million, one hundred thirty-two thousand, twenty-five".