10391139 has 32 divisors (see below), whose sum is σ = 17107200. Its totient is φ = 6180480.

The previous prime is 10391137. The next prime is 10391177. The reversal of 10391139 is 93119301.

It is not a de Polignac number, because 10391139 - 2¹ = 10391137 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (10391137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17227 + ... + 17819.

It is an arithmetic number, because the mean of its divisors is an integer number (534600).

Almost surely, 2^10391139 is an apocalyptic number.

10391139 is a deficient number, since it is larger than the sum of its proper divisors (6716061).

10391139 is a wasteful number, since it uses less digits than its factorization.

10391139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672 (or 666 counting only the distinct ones).

The product of its (nonzero) digits is 729, while the sum is 27.

The square root of 10391139 is about 3223.5289668312. The cubic root of 10391139 is about 218.2165664826.

The spelling of 10391139 in words is "ten million, three hundred ninety-one thousand, one hundred thirty-nine".