31290014 has 16 divisors (see below), whose sum is σ = 55490400. Its totient is φ = 12947424.

The previous prime is 31289989. The next prime is 31290023. The reversal of 31290014 is 41009213.

It is a super-2 number, since 2×31290014² = 1958129952240392, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38129 + ... + 38940.

It is an arithmetic number, because the mean of its divisors is an integer number (3468150).

Almost surely, 2^31290014 is an apocalyptic number.

31290014 is a deficient number, since it is larger than the sum of its proper divisors (24200386).

31290014 is a wasteful number, since it uses less digits than its factorization.

31290014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77107.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 31290014 is about 5593.7477597761. The cubic root of 31290014 is about 315.1146437497.

Adding to 31290014 its reverse (41009213), we get a palindrome (72299227).

The spelling of 31290014 in words is "thirty-one million, two hundred ninety thousand, fourteen".