331672136 has 16 divisors (see below), whose sum is σ = 622093500. Its totient is φ = 165780544.

The previous prime is 331672129. The next prime is 331672141. The reversal of 331672136 is 631276133.

It can be written as a sum of positive squares in 2 ways, for example, as 255808036 + 75864100 = 15994^2 + 8710^2 .

It is a super-2 number, since 2×331672136² = 220012811597604992, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 30026 + ... + 39558.

Almost surely, 2^331672136 is an apocalyptic number.

It is an amenable number.

331672136 is a deficient number, since it is larger than the sum of its proper divisors (290421364).

331672136 is a wasteful number, since it uses less digits than its factorization.

331672136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13888 (or 13884 counting only the distinct ones).

The product of its digits is 13608, while the sum is 32.

The square root of 331672136 is about 18211.8679986431. The cubic root of 331672136 is about 692.2075457519.

The spelling of 331672136 in words is "three hundred thirty-one million, six hundred seventy-two thousand, one hundred thirty-six".