10031239 has 4 divisors (see below), whose sum is σ = 10201320. Its totient is φ = 9861160.

The previous prime is 10031237. The next prime is 10031251. The reversal of 10031239 is 93213001.

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

It is a cyclic number.

It is not a de Polignac number, because 10031239 - 2¹ = 10031237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10031233) 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, 84952 + ... + 85069.

It is an arithmetic number, because the mean of its divisors is an integer number (2550330).

Almost surely, 2^10031239 is an apocalyptic number.

10031239 is a deficient number, since it is larger than the sum of its proper divisors (170081).

10031239 is an equidigital number, since it uses as much as digits as its factorization.

10031239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170080.

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 10031239 is about 3167.2131282880. The cubic root of 10031239 is about 215.6675770855.

The spelling of 10031239 in words is "ten million, thirty-one thousand, two hundred thirty-nine".