10139631 has 4 divisors (see below), whose sum is σ = 13519512. Its totient is φ = 6759752.

The previous prime is 10139609. The next prime is 10139651. The reversal of 10139631 is 13693101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13693101 = 3 ⋅4564367.

It is a cyclic number.

It is not a de Polignac number, because 10139631 - 2¹⁴ = 10123247 is a prime.

It is a super-2 number, since 2×10139631² = 205624233632322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10139651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1689936 + ... + 1689941.

It is an arithmetic number, because the mean of its divisors is an integer number (3379878).

Almost surely, 2^10139631 is an apocalyptic number.

10139631 is a deficient number, since it is larger than the sum of its proper divisors (3379881).

10139631 is an equidigital number, since it uses as much as digits as its factorization.

10139631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3379880.

The product of its (nonzero) digits is 486, while the sum is 24.

The square root of 10139631 is about 3184.2787252375. The cubic root of 10139631 is about 216.4415905952.

The spelling of 10139631 in words is "ten million, one hundred thirty-nine thousand, six hundred thirty-one".