13881655 has 8 divisors (see below), whose sum is σ = 16681392. Its totient is φ = 11089728.

The previous prime is 13881653. The next prime is 13881671. The reversal of 13881655 is 55618831.

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 13881655 - 2¹ = 13881653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13881653) 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, 3204 + ... + 6166.

It is an arithmetic number, because the mean of its divisors is an integer number (2085174).

Almost surely, 2^13881655 is an apocalyptic number.

13881655 is a deficient number, since it is larger than the sum of its proper divisors (2799737).

13881655 is an equidigital number, since it uses as much as digits as its factorization.

13881655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3905.

The product of its digits is 28800, while the sum is 37.

The square root of 13881655 is about 3725.8093080564. The cubic root of 13881655 is about 240.3331888446. Note that the first 3 decimals are identical.

The spelling of 13881655 in words is "thirteen million, eight hundred eighty-one thousand, six hundred fifty-five".