14139631 has 16 divisors (see below), whose sum is σ = 16547328. Its totient is φ = 11939200.

The previous prime is 14139623. The next prime is 14139637. The reversal of 14139631 is 13693141.

It is a cyclic number.

It is not a de Polignac number, because 14139631 - 2³ = 14139623 is a prime.

It is a super-2 number, since 2×14139631² = 399858329632322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 14139631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14139637) 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, 15066 + ... + 15976.

It is an arithmetic number, because the mean of its divisors is an integer number (1034208).

Almost surely, 2^14139631 is an apocalyptic number.

14139631 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

14139631 is a deficient number, since it is larger than the sum of its proper divisors (2407697).

14139631 is a wasteful number, since it uses less digits than its factorization.

14139631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1022.

The product of its digits is 1944, while the sum is 28.

The square root of 14139631 is about 3760.2700700881. The cubic root of 14139631 is about 241.8128405149.

The spelling of 14139631 in words is "fourteen million, one hundred thirty-nine thousand, six hundred thirty-one".