13311641 has 16 divisors (see below), whose sum is σ = 16070400. Its totient is φ = 10779648.

The previous prime is 13311637. The next prime is 13311643. The reversal of 13311641 is 14611331.

It is a cyclic number.

It is not a de Polignac number, because 13311641 - 2² = 13311637 is a prime.

It is a super-2 number, since 2×13311641² = 354399572225762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13311643) 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, 13865 + ... + 14793.

It is an arithmetic number, because the mean of its divisors is an integer number (1004400).

Almost surely, 2^13311641 is an apocalyptic number.

It is an amenable number.

13311641 is a deficient number, since it is larger than the sum of its proper divisors (2758759).

13311641 is an equidigital number, since it uses as much as digits as its factorization.

13311641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1048.

The product of its digits is 216, while the sum is 20.

The square root of 13311641 is about 3648.5121625123. The cubic root of 13311641 is about 236.9975549725.

Adding to 13311641 its reverse (14611331), we get a palindrome (27922972).

The spelling of 13311641 in words is "thirteen million, three hundred eleven thousand, six hundred forty-one".