31682136 has 32 divisors (see below), whose sum is σ = 80893440. Its totient is φ = 10335648.

The previous prime is 31682107. The next prime is 31682137. The reversal of 31682136 is 63128613.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31682137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12916 + ... + 15171.

It is an arithmetic number, because the mean of its divisors is an integer number (2527920).

Almost surely, 2^31682136 is an apocalyptic number.

It is an amenable number.

31682136 is an abundant number, since it is smaller than the sum of its proper divisors (49211304).

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

31682136 is a wasteful number, since it uses less digits than its factorization.

31682136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28143 (or 28139 counting only the distinct ones).

The product of its digits is 5184, while the sum is 30.

The square root of 31682136 is about 5628.6886572274. The cubic root of 31682136 is about 316.4255070023.

The spelling of 31682136 in words is "thirty-one million, six hundred eighty-two thousand, one hundred thirty-six".