30131039 has 16 divisors (see below), whose sum is σ = 32117760. Its totient is φ = 28226880.

The previous prime is 30131033. The next prime is 30131041. The reversal of 30131039 is 93013103.

It is a cyclic number.

It is not a de Polignac number, because 30131039 - 2²⁰ = 29082463 is a prime.

It is a super-2 number, since 2×30131039² = 1815759022439042, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30131039.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30131033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 184772 + ... + 184934.

It is an arithmetic number, because the mean of its divisors is an integer number (2007360).

Almost surely, 2^30131039 is an apocalyptic number.

30131039 is a deficient number, since it is larger than the sum of its proper divisors (1986721).

30131039 is a wasteful number, since it uses less digits than its factorization.

30131039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350.

The product of its (nonzero) digits is 243, while the sum is 20.

The square root of 30131039 is about 5489.1747102820. The cubic root of 30131039 is about 311.1750030862.

The spelling of 30131039 in words is "thirty million, one hundred thirty-one thousand, thirty-nine".