13361831 has 8 divisors (see below), whose sum is σ = 15327264. Its totient is φ = 11410560.

The previous prime is 13361801. The next prime is 13361861. The reversal of 13361831 is 13816331.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13361801) and next prime (13361861).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13361831 - 2¹⁸ = 13099687 is a prime.

It is a super-2 number, since 2×13361831² = 357077055345122, 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 13361831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13361801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1430 + ... + 5363.

It is an arithmetic number, because the mean of its divisors is an integer number (1915908).

Almost surely, 2^13361831 is an apocalyptic number.

13361831 is a deficient number, since it is larger than the sum of its proper divisors (1965433).

13361831 is an equidigital number, since it uses as much as digits as its factorization.

13361831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7081.

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

The square root of 13361831 is about 3655.3838375744. The cubic root of 13361831 is about 237.2950386828.

The spelling of 13361831 in words is "thirteen million, three hundred sixty-one thousand, eight hundred thirty-one".