131558425 has 12 divisors (see below), whose sum is σ = 164114496. Its totient is φ = 104613200.

The previous prime is 131558417. The next prime is 131558429. The reversal of 131558425 is 524855131.

It is not a de Polignac number, because 131558425 - 2³ = 131558417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131558429) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11581 + ... + 19930.

It is an arithmetic number, because the mean of its divisors is an integer number (13676208).

Almost surely, 2^131558425 is an apocalyptic number.

It is an amenable number.

131558425 is a deficient number, since it is larger than the sum of its proper divisors (32556071).

131558425 is a wasteful number, since it uses less digits than its factorization.

131558425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31688 (or 31683 counting only the distinct ones).

The product of its digits is 24000, while the sum is 34.

The square root of 131558425 is about 11469.8921093444. The cubic root of 131558425 is about 508.5959394429.

It can be divided in two parts, 1315584 and 25, that added together give a square (1315609 = 1147²).

The spelling of 131558425 in words is "one hundred thirty-one million, five hundred fifty-eight thousand, four hundred twenty-five".