13906057 has 8 divisors (see below), whose sum is σ = 15240960. Its totient is φ = 12582960.

The previous prime is 13906037. The next prime is 13906097. The reversal of 13906057 is 75060931.

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 13906057 - 2¹⁵ = 13873289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13906027) 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, 382 + ... + 5287.

It is an arithmetic number, because the mean of its divisors is an integer number (1905120).

Almost surely, 2^13906057 is an apocalyptic number.

It is an amenable number.

13906057 is a deficient number, since it is larger than the sum of its proper divisors (1334903).

13906057 is a wasteful number, since it uses less digits than its factorization.

13906057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5903.

The product of its (nonzero) digits is 5670, while the sum is 31.

The square root of 13906057 is about 3729.0825949555. The cubic root of 13906057 is about 240.4739304070.

Adding to 13906057 its reverse (75060931), we get a palindrome (88966988).

It can be divided in two parts, 1390 and 6057, that added together give a palindrome (7447).

The spelling of 13906057 in words is "thirteen million, nine hundred six thousand, fifty-seven".