13553131 has 8 divisors (see below), whose sum is σ = 14500080. Its totient is φ = 12622848.

The previous prime is 13553123. The next prime is 13553147. The reversal of 13553131 is 13135531.

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

It is a cyclic number.

It is not a de Polignac number, because 13553131 - 2³ = 13553123 is a prime.

It is a super-2 number, since 2×13553131² = 367374719806322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13553101) 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, 2461 + ... + 5758.

It is an arithmetic number, because the mean of its divisors is an integer number (1812510).

Almost surely, 2^13553131 is an apocalyptic number.

13553131 is a deficient number, since it is larger than the sum of its proper divisors (946949).

13553131 is an equidigital number, since it uses as much as digits as its factorization.

13553131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8333.

The product of its digits is 675, while the sum is 22.

The square root of 13553131 is about 3681.4577275856. The cubic root of 13553131 is about 238.4221200272.

Adding to 13553131 its reverse (13135531), we get a palindrome (26688662).

The spelling of 13553131 in words is "thirteen million, five hundred fifty-three thousand, one hundred thirty-one".