13162431 has 4 divisors (see below), whose sum is σ = 17549912. Its totient is φ = 8774952.

The previous prime is 13162399. The next prime is 13162451. The reversal of 13162431 is 13426131.

13162431 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 not a de Polignac number, because 13162431 - 2⁵ = 13162399 is a prime.

It is a super-2 number, since 2×13162431² = 346499179659522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13162398 and 13162407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13162451) 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, 2193736 + ... + 2193741.

It is an arithmetic number, because the mean of its divisors is an integer number (4387478).

Almost surely, 2^13162431 is an apocalyptic number.

13162431 is a deficient number, since it is larger than the sum of its proper divisors (4387481).

13162431 is an equidigital number, since it uses as much as digits as its factorization.

13162431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4387480.

The product of its digits is 432, while the sum is 21.

The square root of 13162431 is about 3628.0064773922. The cubic root of 13162431 is about 236.1087249196.

Adding to 13162431 its reverse (13426131), we get a palindrome (26588562).

The spelling of 13162431 in words is "thirteen million, one hundred sixty-two thousand, four hundred thirty-one".