131922225 has 36 divisors (see below), whose sum is σ = 248731600. Its totient is φ = 66653280.

The previous prime is 131922211. The next prime is 131922239. The reversal of 131922225 is 522229131.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (131922211) and next prime (131922239).

It is not a de Polignac number, because 131922225 - 2⁴ = 131922209 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 11155 + ... + 19704.

Almost surely, 2^131922225 is an apocalyptic number.

131922225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

131922225 is a deficient number, since it is larger than the sum of its proper divisors (116809375).

131922225 is a wasteful number, since it uses less digits than its factorization.

131922225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30894 (or 30886 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 131922225 is about 11485.7400719327. The cubic root of 131922225 is about 509.0643166720.

The spelling of 131922225 in words is "one hundred thirty-one million, nine hundred twenty-two thousand, two hundred twenty-five".