13902121 has 8 divisors (see below), whose sum is σ = 14324480. Its totient is φ = 13482288.

The previous prime is 13902103. The next prime is 13902127. The reversal of 13902121 is 12120931.

13902121 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 13902121 - 2²³ = 5513513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13902127) 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, 22150 + ... + 22768.

It is an arithmetic number, because the mean of its divisors is an integer number (1790560).

Almost surely, 2^13902121 is an apocalyptic number.

It is an amenable number.

13902121 is a deficient number, since it is larger than the sum of its proper divisors (422359).

13902121 is an equidigital number, since it uses as much as digits as its factorization.

13902121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1263.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 13902121 is about 3728.5548138656. The cubic root of 13902121 is about 240.4512401816.

The spelling of 13902121 in words is "thirteen million, nine hundred two thousand, one hundred twenty-one".