31138014 has 8 divisors (see below), whose sum is σ = 62276040. Its totient is φ = 10379336.

The previous prime is 31138013. The next prime is 31138039. The reversal of 31138014 is 41083113.

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

31138014 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31138013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2594829 + ... + 2594840.

It is an arithmetic number, because the mean of its divisors is an integer number (7784505).

Almost surely, 2^31138014 is an apocalyptic number.

31138014 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.

31138014 is a wasteful number, since it uses less digits than its factorization.

31138014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5189674.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 31138014 is about 5580.1446217818. The cubic root of 31138014 is about 314.6035627572.

The spelling of 31138014 in words is "thirty-one million, one hundred thirty-eight thousand, fourteen".