156135025 has 6 divisors (see below), whose sum is σ = 193607462. Its totient is φ = 124908000.

The previous prime is 156135019. The next prime is 156135053. The reversal of 156135025 is 520531651.

It can be written as a sum of positive squares in 3 ways, for example, as 55011889 + 101123136 = 7417^2 + 10056^2 .

It is not a de Polignac number, because 156135025 - 2¹³ = 156126833 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 156134984 and 156135002.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3122676 + ... + 3122725.

Almost surely, 2^156135025 is an apocalyptic number.

It is an amenable number.

156135025 is a deficient number, since it is larger than the sum of its proper divisors (37472437).

156135025 is an equidigital number, since it uses as much as digits as its factorization.

156135025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6245411 (or 6245406 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 156135025 is about 12495.4001536565. The cubic root of 156135025 is about 538.4765301556.

Adding to 156135025 its reverse (520531651), we get a palindrome (676666676).

The spelling of 156135025 in words is "one hundred fifty-six million, one hundred thirty-five thousand, twenty-five".