131522125 has 48 divisors (see below), whose sum is σ = 193667760. Its totient is φ = 88905600.

The previous prime is 131522113. The next prime is 131522143. The reversal of 131522125 is 521225131.

It can be written as a sum of positive squares in 8 ways, for example, as 4351396 + 127170729 = 2086^2 + 11277^2 .

It is not a de Polignac number, because 131522125 - 2¹⁵ = 131489357 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131522096 and 131522105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 667527 + ... + 667723.

It is an arithmetic number, because the mean of its divisors is an integer number (4034745).

Almost surely, 2^131522125 is an apocalyptic number.

It is an amenable number.

131522125 is a deficient number, since it is larger than the sum of its proper divisors (62145635).

131522125 is a wasteful number, since it uses less digits than its factorization.

131522125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335 (or 318 counting only the distinct ones).

The product of its digits is 600, while the sum is 22.

The square root of 131522125 is about 11468.3095964488. The cubic root of 131522125 is about 508.5491573614.

Adding to 131522125 its reverse (521225131), we get a palindrome (652747256).

The spelling of 131522125 in words is "one hundred thirty-one million, five hundred twenty-two thousand, one hundred twenty-five".