131506825 has 12 divisors (see below), whose sum is σ = 163985040. Its totient is φ = 104614160.

The previous prime is 131506819. The next prime is 131506841. The reversal of 131506825 is 528605131.

It is not a de Polignac number, because 131506825 - 2⁹ = 131506313 is a prime.

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, 10219 + ... + 19168.

It is an arithmetic number, because the mean of its divisors is an integer number (13665420).

Almost surely, 2^131506825 is an apocalyptic number.

It is an amenable number.

131506825 is a deficient number, since it is larger than the sum of its proper divisors (32478215).

131506825 is a wasteful number, since it uses less digits than its factorization.

131506825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29576 (or 29571 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 131506825 is about 11467.6425214601. The cubic root of 131506825 is about 508.5294367153.

The spelling of 131506825 in words is "one hundred thirty-one million, five hundred six thousand, eight hundred twenty-five".