13255121 has 16 divisors (see below), whose sum is σ = 15536448. Its totient is φ = 11174400.

The previous prime is 13255111. The next prime is 13255127. The reversal of 13255121 is 12155231.

13255121 = 875² + 876² + ... + 891².

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 13255121 - 2⁶ = 13255057 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13255093 and 13255102.

It is not an unprimeable number, because it can be changed into a prime (13255127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13166 + ... + 14136.

It is an arithmetic number, because the mean of its divisors is an integer number (971028).

Almost surely, 2^13255121 is an apocalyptic number.

13255121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13255121 is a deficient number, since it is larger than the sum of its proper divisors (2281327).

13255121 is a wasteful number, since it uses less digits than its factorization.

13255121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1072.

The product of its digits is 300, while the sum is 20.

The square root of 13255121 is about 3640.7583001347. The cubic root of 13255121 is about 236.6616558705.

It can be divided in two parts, 1325 and 5121, that added together give a palindrome (6446).

The spelling of 13255121 in words is "thirteen million, two hundred fifty-five thousand, one hundred twenty-one".