13355121 has 16 divisors (see below), whose sum is σ = 19244736. Its totient is φ = 8189376.

The previous prime is 13355117. The next prime is 13355123. The reversal of 13355121 is 12155331.

13355121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13355121 - 2² = 13355117 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13355123) 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, 16891 + ... + 17663.

It is an arithmetic number, because the mean of its divisors is an integer number (1202796).

Almost surely, 2^13355121 is an apocalyptic number.

It is an amenable number.

13355121 is a deficient number, since it is larger than the sum of its proper divisors (5889615).

13355121 is a wasteful number, since it uses less digits than its factorization.

13355121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1232.

The product of its digits is 450, while the sum is 21.

The square root of 13355121 is about 3654.4658980486. The cubic root of 13355121 is about 237.2553106865.

The spelling of 13355121 in words is "thirteen million, three hundred fifty-five thousand, one hundred twenty-one".