31129059 has 16 divisors (see below), whose sum is σ = 44809632. Its totient is φ = 19108608.

The previous prime is 31129039. The next prime is 31129061. The reversal of 31129059 is 95092113.

It is not a de Polignac number, because 31129059 - 2¹² = 31124963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31129009) 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, 21007 + ... + 22439.

It is an arithmetic number, because the mean of its divisors is an integer number (2800602).

Almost surely, 2^31129059 is an apocalyptic number.

31129059 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

31129059 is a deficient number, since it is larger than the sum of its proper divisors (13680573).

31129059 is a wasteful number, since it uses less digits than its factorization.

31129059 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2006.

The product of its (nonzero) digits is 2430, while the sum is 30.

The square root of 31129059 is about 5579.3421655245. The cubic root of 31129059 is about 314.5734008569.

The spelling of 31129059 in words is "thirty-one million, one hundred twenty-nine thousand, fifty-nine".