31849136 has 30 divisors (see below), whose sum is σ = 67831596. Its totient is φ = 14476000.

The previous prime is 31849123. The next prime is 31849141. The reversal of 31849136 is 63194813.

It is a junction number, because it is equal to n+sod(n) for n = 31849096 and 31849105.

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, 6290 + ... + 10161.

Almost surely, 2^31849136 is an apocalyptic number.

It is an amenable number.

31849136 is an abundant number, since it is smaller than the sum of its proper divisors (35982460).

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

31849136 is a wasteful number, since it uses less digits than its factorization.

31849136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16481 (or 16464 counting only the distinct ones).

The product of its digits is 15552, while the sum is 35.

The square root of 31849136 is about 5643.5038761394. The cubic root of 31849136 is about 316.9805041299.

The spelling of 31849136 in words is "thirty-one million, eight hundred forty-nine thousand, one hundred thirty-six".