13851057 has 16 divisors (see below), whose sum is σ = 21208320. Its totient is φ = 7952400.

The previous prime is 13851053. The next prime is 13851109. The reversal of 13851057 is 75015831.

It is not a de Polignac number, because 13851057 - 2² = 13851053 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13851053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10419 + ... + 11672.

It is an arithmetic number, because the mean of its divisors is an integer number (1325520).

Almost surely, 2^13851057 is an apocalyptic number.

It is an amenable number.

13851057 is a deficient number, since it is larger than the sum of its proper divisors (7357263).

13851057 is a wasteful number, since it uses less digits than its factorization.

13851057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22124.

The product of its (nonzero) digits is 4200, while the sum is 30.

The square root of 13851057 is about 3721.7008208613. The cubic root of 13851057 is about 240.1564778168.

Adding to 13851057 its reverse (75015831), we get a palindrome (88866888).

It can be divided in two parts, 1385 and 1057, that added together give a palindrome (2442).

The spelling of 13851057 in words is "thirteen million, eight hundred fifty-one thousand, fifty-seven".