13316831 has 24 divisors (see below), whose sum is σ = 15914880. Its totient is φ = 11043200.

The previous prime is 13316801. The next prime is 13316867. The reversal of 13316831 is 13861331.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-13316831 is a prime.

It is a super-2 number, since 2×13316831² = 354675975765122, 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 13316831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13316801) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 187526 + ... + 187596.

It is an arithmetic number, because the mean of its divisors is an integer number (663120).

Almost surely, 2^13316831 is an apocalyptic number.

13316831 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13316831 is a deficient number, since it is larger than the sum of its proper divisors (2598049).

13316831 is a wasteful number, since it uses less digits than its factorization.

13316831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175 (or 158 counting only the distinct ones).

The product of its digits is 1296, while the sum is 26.

The square root of 13316831 is about 3649.2233420277. The cubic root of 13316831 is about 237.0283515134.

The spelling of 13316831 in words is "thirteen million, three hundred sixteen thousand, eight hundred thirty-one".