13356631 has 4 divisors (see below), whose sum is σ = 13368064. Its totient is φ = 13345200.

The previous prime is 13356619. The next prime is 13356643. The reversal of 13356631 is 13665331.

13356631 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is an interprime number because it is at equal distance from previous prime (13356619) and next prime (13356643).

It is a cyclic number.

It is not a de Polignac number, because 13356631 - 2⁵ = 13356599 is a prime.

It is a super-2 number, since 2×13356631² = 356799183340322, 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 13356631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13356661) 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, 3735 + ... + 6376.

It is an arithmetic number, because the mean of its divisors is an integer number (3342016).

Almost surely, 2^13356631 is an apocalyptic number.

13356631 is a deficient number, since it is larger than the sum of its proper divisors (11433).

13356631 is a wasteful number, since it uses less digits than its factorization.

13356631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11432.

The product of its digits is 4860, while the sum is 28.

The square root of 13356631 is about 3654.6724887464. The cubic root of 13356631 is about 237.2642521260.

The spelling of 13356631 in words is "thirteen million, three hundred fifty-six thousand, six hundred thirty-one".