13907081 has 8 divisors (see below), whose sum is σ = 14150400. Its totient is φ = 13665600.

The previous prime is 13907063. The next prime is 13907087. The reversal of 13907081 is 18070931.

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 13907081 - 2¹⁸ = 13644937 is a prime.

It is a super-2 number, since 2×13907081² = 386813803881122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13907087) 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, 31460 + ... + 31898.

It is an arithmetic number, because the mean of its divisors is an integer number (1768800).

Almost surely, 2^13907081 is an apocalyptic number.

It is an amenable number.

13907081 is a deficient number, since it is larger than the sum of its proper divisors (243319).

13907081 is an equidigital number, since it uses as much as digits as its factorization.

13907081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 919.

The product of its (nonzero) digits is 1512, while the sum is 29.

The square root of 13907081 is about 3729.2198916127. The cubic root of 13907081 is about 240.4798328532.

The spelling of 13907081 in words is "thirteen million, nine hundred seven thousand, eighty-one".