13902161 has 16 divisors (see below), whose sum is σ = 17211264. Its totient is φ = 10934784.

The previous prime is 13902151. The next prime is 13902169. The reversal of 13902161 is 16120931.

It is a happy number.

It is not a de Polignac number, because 13902161 - 2¹⁰ = 13901137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13902169) 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, 20321 + ... + 20993.

It is an arithmetic number, because the mean of its divisors is an integer number (1075704).

Almost surely, 2^13902161 is an apocalyptic number.

It is an amenable number.

13902161 is a deficient number, since it is larger than the sum of its proper divisors (3309103).

13902161 is a wasteful number, since it uses less digits than its factorization.

13902161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 920.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 13902161 is about 3728.5601778703. The cubic root of 13902161 is about 240.4514707948.

The spelling of 13902161 in words is "thirteen million, nine hundred two thousand, one hundred sixty-one".