131572225 has 12 divisors (see below), whose sum is σ = 163489536. Its totient is φ = 105038480.

The previous prime is 131572219. The next prime is 131572237. The reversal of 131572225 is 522275131.

It is not a de Polignac number, because 131572225 - 2⁵ = 131572193 is a prime.

It is a super-2 number, since 2×131572225² = 34622500782901250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131572193 and 131572202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7344 + ... + 17806.

It is an arithmetic number, because the mean of its divisors is an integer number (13624128).

Almost surely, 2^131572225 is an apocalyptic number.

It is an amenable number.

131572225 is a deficient number, since it is larger than the sum of its proper divisors (31917311).

131572225 is a wasteful number, since it uses less digits than its factorization.

131572225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10976 (or 10971 counting only the distinct ones).

The product of its digits is 4200, while the sum is 28.

The square root of 131572225 is about 11470.4936685393. The cubic root of 131572225 is about 508.6137221088.

The spelling of 131572225 in words is "one hundred thirty-one million, five hundred seventy-two thousand, two hundred twenty-five".