13493331 has 16 divisors (see below), whose sum is σ = 20291200. Its totient is φ = 8860104.

The previous prime is 13493329. The next prime is 13493351. The reversal of 13493331 is 13339431.

It is not a de Polignac number, because 13493331 - 2¹ = 13493329 is a prime.

It is a super-2 number, since 2×13493331² = 364139962951122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13493295 and 13493304.

It is not an unprimeable number, because it can be changed into a prime (13493321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1921 + ... + 5538.

It is an arithmetic number, because the mean of its divisors is an integer number (1268200).

Almost surely, 2^13493331 is an apocalyptic number.

13493331 is a deficient number, since it is larger than the sum of its proper divisors (6797869).

13493331 is an equidigital number, since it uses as much as digits as its factorization.

13493331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7535 (or 7529 counting only the distinct ones).

The product of its digits is 2916, while the sum is 27.

The square root of 13493331 is about 3673.3269661167. The cubic root of 13493331 is about 238.0709425311.

It can be divided in two parts, 13493 and 331, that added together give a cube (13824 = 24³).

The spelling of 13493331 in words is "thirteen million, four hundred ninety-three thousand, three hundred thirty-one".