13456331 has 12 divisors (see below), whose sum is σ = 15814080. Its totient is φ = 11415600.

The previous prime is 13456327. The next prime is 13456337. The reversal of 13456331 is 13365431.

It is not a de Polignac number, because 13456331 - 2² = 13456327 is a prime.

It is a super-2 number, since 2×13456331² = 362145687963122, 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 13456331.

It is not an unprimeable number, because it can be changed into a prime (13456337) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3590 + ... + 6308.

It is an arithmetic number, because the mean of its divisors is an integer number (1317840).

Almost surely, 2^13456331 is an apocalyptic number.

13456331 is a deficient number, since it is larger than the sum of its proper divisors (2357749).

13456331 is a wasteful number, since it uses less digits than its factorization.

13456331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2834 (or 2827 counting only the distinct ones).

The product of its digits is 3240, while the sum is 26.

The square root of 13456331 is about 3668.2872024966. The cubic root of 13456331 is about 237.8531389232.

It can be divided in two parts, 134 and 56331, that added together give a palindrome (56465).

The spelling of 13456331 in words is "thirteen million, four hundred fifty-six thousand, three hundred thirty-one".