10812139 has 8 divisors (see below), whose sum is σ = 12150432. Its totient is φ = 9546240.

The previous prime is 10812133. The next prime is 10812143. The reversal of 10812139 is 93121801.

10812139 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 10812139 - 2⁵ = 10812107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10812133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17782 + ... + 18379.

It is an arithmetic number, because the mean of its divisors is an integer number (1518804).

Almost surely, 2^10812139 is an apocalyptic number.

10812139 is a deficient number, since it is larger than the sum of its proper divisors (1338293).

10812139 is a wasteful number, since it uses less digits than its factorization.

10812139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36197.

The product of its (nonzero) digits is 432, while the sum is 25.

The square root of 10812139 is about 3288.1817163898. The cubic root of 10812139 is about 221.1246745737.

The spelling of 10812139 in words is "ten million, eight hundred twelve thousand, one hundred thirty-nine".