130331525 has 12 divisors (see below), whose sum is σ = 162795012. Its totient is φ = 103501440.

The previous prime is 130331519. The next prime is 130331561. The reversal of 130331525 is 525133031.

It can be written as a sum of positive squares in 6 ways, for example, as 2505889 + 127825636 = 1583^2 + 11306^2 .

It is not a de Polignac number, because 130331525 - 2²⁰ = 129282949 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 130331525.

It is a congruent number.

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, 15602 + ... + 22451.

It is an arithmetic number, because the mean of its divisors is an integer number (13566251).

Almost surely, 2^130331525 is an apocalyptic number.

It is an amenable number.

130331525 is a deficient number, since it is larger than the sum of its proper divisors (32463487).

130331525 is a wasteful number, since it uses less digits than its factorization.

130331525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38200 (or 38195 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 23.

The square root of 130331525 is about 11416.2833268976. The cubic root of 130331525 is about 507.0099615885.

Adding to 130331525 its reverse (525133031), we get a palindrome (655464556).

The spelling of 130331525 in words is "one hundred thirty million, three hundred thirty-one thousand, five hundred twenty-five".