13431655 has 8 divisors (see below), whose sum is σ = 16818912. Its totient is φ = 10278048.

The previous prime is 13431619. The next prime is 13431661. The reversal of 13431655 is 55613431.

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 13431655 - 2²¹ = 11334503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58284 + ... + 58513.

It is an arithmetic number, because the mean of its divisors is an integer number (2102364).

Almost surely, 2^13431655 is an apocalyptic number.

13431655 is a deficient number, since it is larger than the sum of its proper divisors (3387257).

13431655 is a wasteful number, since it uses less digits than its factorization.

13431655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116825.

The product of its digits is 5400, while the sum is 28.

The square root of 13431655 is about 3664.9222365556. The cubic root of 13431655 is about 237.7076595606.

The spelling of 13431655 in words is "thirteen million, four hundred thirty-one thousand, six hundred fifty-five".