31133196 has 18 divisors (see below), whose sum is σ = 78697892. Its totient is φ = 10377720.

The previous prime is 31133183. The next prime is 31133209. The reversal of 31133196 is 69133113.

It is an interprime number because it is at equal distance from previous prime (31133183) and next prime (31133209).

It is a tau number, because it is divible by the number of its divisors (18).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 432370 + ... + 432441.

Almost surely, 2^31133196 is an apocalyptic number.

31133196 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

31133196 is an abundant number, since it is smaller than the sum of its proper divisors (47564696).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31133196 is a wasteful number, since it uses less digits than its factorization.

31133196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 864821 (or 864816 counting only the distinct ones).

The product of its digits is 1458, while the sum is 27.

The square root of 31133196 is about 5579.7128958397. The cubic root of 31133196 is about 314.5873356663.

It can be divided in two parts, 31133 and 196, that added together give a square (31329 = 177²).

The spelling of 31133196 in words is "thirty-one million, one hundred thirty-three thousand, one hundred ninety-six".