136131025 has 12 divisors (see below), whose sum is σ = 168949504. Its totient is φ = 108810000.

The previous prime is 136131011. The next prime is 136131031. The reversal of 136131025 is 520131631.

It is a happy number.

It is not a de Polignac number, because 136131025 - 2⁹ = 136130513 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 136130987 and 136131005.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47380 + ... + 50170.

Almost surely, 2^136131025 is an apocalyptic number.

It is an amenable number.

136131025 is a deficient number, since it is larger than the sum of its proper divisors (32818479).

136131025 is a wasteful number, since it uses less digits than its factorization.

136131025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4752 (or 4747 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 136131025 is about 11667.5200878336. The cubic root of 136131025 is about 514.4214132471.

Adding to 136131025 its reverse (520131631), we get a palindrome (656262656).

The spelling of 136131025 in words is "one hundred thirty-six million, one hundred thirty-one thousand, twenty-five".