13953131 has 4 divisors (see below), whose sum is σ = 14403264. Its totient is φ = 13503000.

The previous prime is 13953103. The next prime is 13953143. The reversal of 13953131 is 13135931.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13953131 - 2⁶ = 13953067 is a prime.

It is a super-2 number, since 2×13953131² = 389379729406322, which contains 22 as substring.

It is a Duffinian number.

13953131 is a modest number, since divided by 3131 gives 1395 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 13953131.

It is not an unprimeable number, because it can be changed into a prime (13953631) 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 3 ways as a sum of consecutive naturals, for example, 225020 + ... + 225081.

It is an arithmetic number, because the mean of its divisors is an integer number (3600816).

Almost surely, 2^13953131 is an apocalyptic number.

13953131 is a deficient number, since it is larger than the sum of its proper divisors (450133).

13953131 is an equidigital number, since it uses as much as digits as its factorization.

13953131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450132.

The product of its digits is 1215, while the sum is 26.

The square root of 13953131 is about 3735.3890025003. The cubic root of 13953131 is about 240.7449710625.

The spelling of 13953131 in words is "thirteen million, nine hundred fifty-three thousand, one hundred thirty-one".