31681014 has 8 divisors (see below), whose sum is σ = 63362040. Its totient is φ = 10560336.

The previous prime is 31681007. The next prime is 31681043. The reversal of 31681014 is 41018613.

It is a sphenic number, since it is the product of 3 distinct primes.

31681014 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2640079 + ... + 2640090.

It is an arithmetic number, because the mean of its divisors is an integer number (7920255).

Almost surely, 2^31681014 is an apocalyptic number.

31681014 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

31681014 is a wasteful number, since it uses less digits than its factorization.

31681014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5280174.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 31681014 is about 5628.5889883700. The cubic root of 31681014 is about 316.4217716312.

Adding to 31681014 its reverse (41018613), we get a palindrome (72699627).

The spelling of 31681014 in words is "thirty-one million, six hundred eighty-one thousand, fourteen".