13967131 has 8 divisors (see below), whose sum is σ = 14598144. Its totient is φ = 13350120.

The previous prime is 13967123. The next prime is 13967153. The reversal of 13967131 is 13176931.

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 13967131 - 2³ = 13967123 is a prime.

It is a super-2 number, since 2×13967131² = 390161496742322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13967093 and 13967102.

It is not an unprimeable number, because it can be changed into a prime (13967431) 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, 1435 + ... + 5476.

It is an arithmetic number, because the mean of its divisors is an integer number (1824768).

Almost surely, 2^13967131 is an apocalyptic number.

13967131 is a deficient number, since it is larger than the sum of its proper divisors (631013).

13967131 is an equidigital number, since it uses as much as digits as its factorization.

13967131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7001.

The product of its digits is 3402, while the sum is 31.

The square root of 13967131 is about 3737.2625008153. The cubic root of 13967131 is about 240.8254620283.

The spelling of 13967131 in words is "thirteen million, nine hundred sixty-seven thousand, one hundred thirty-one".