31390059 has 4 divisors (see below), whose sum is σ = 41853416. Its totient is φ = 20926704.

The previous prime is 31390027. The next prime is 31390067. The reversal of 31390059 is 95009313.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 31390059 - 2⁵ = 31390027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31390069) 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, 5231674 + ... + 5231679.

It is an arithmetic number, because the mean of its divisors is an integer number (10463354).

Almost surely, 2^31390059 is an apocalyptic number.

31390059 is a deficient number, since it is larger than the sum of its proper divisors (10463357).

31390059 is a wasteful number, since it uses less digits than its factorization.

31390059 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10463356.

The product of its (nonzero) digits is 3645, while the sum is 30.

The square root of 31390059 is about 5602.6831964693. The cubic root of 31390059 is about 315.4501299597.

The spelling of 31390059 in words is "thirty-one million, three hundred ninety thousand, fifty-nine".