131255025 has 24 divisors (see below), whose sum is σ = 236737824. Its totient is φ = 63638400.

The previous prime is 131254987. The next prime is 131255029. The reversal of 131255025 is 520552131.

It is a happy number.

It is not a de Polignac number, because 131255025 - 2⁸ = 131254769 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 131254986 and 131255004.

It is not an unprimeable number, because it can be changed into a prime (131255029) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 78724 + ... + 80373.

It is an arithmetic number, because the mean of its divisors is an integer number (9864076).

Almost surely, 2^131255025 is an apocalyptic number.

131255025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

131255025 is a deficient number, since it is larger than the sum of its proper divisors (105482799).

131255025 is a wasteful number, since it uses less digits than its factorization.

131255025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159121 (or 159116 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 131255025 is about 11456.6585442702. The cubic root of 131255025 is about 508.2046639014.

The spelling of 131255025 in words is "one hundred thirty-one million, two hundred fifty-five thousand, twenty-five".