31289014 has 8 divisors (see below), whose sum is σ = 47039400. Its totient is φ = 15609216.

The previous prime is 31289009. The next prime is 31289017. The reversal of 31289014 is 41098213.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31289017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16524 + ... + 18319.

It is an arithmetic number, because the mean of its divisors is an integer number (5879925).

Almost surely, 2^31289014 is an apocalyptic number.

31289014 is a deficient number, since it is larger than the sum of its proper divisors (15750386).

31289014 is a wasteful number, since it uses less digits than its factorization.

31289014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35294.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 31289014 is about 5593.6583735512. The cubic root of 31289014 is about 315.1112867894. Note that the first 3 decimals are identical.

The spelling of 31289014 in words is "thirty-one million, two hundred eighty-nine thousand, fourteen".