14618921 has 2 divisors, whose sum is σ = 14618922. Its totient is φ = 14618920.

The previous prime is 14618917. The next prime is 14618941. The reversal of 14618921 is 12981641.

14618921 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11155600 + 3463321 = 3340^2 + 1861^2 .

It is a cyclic number.

It is not a de Polignac number, because 14618921 - 2² = 14618917 is a prime.

It is not a weakly prime, because it can be changed into another prime (14618941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7309460 + 7309461.

It is an arithmetic number, because the mean of its divisors is an integer number (7309461).

Almost surely, 2^14618921 is an apocalyptic number.

It is an amenable number.

14618921 is a deficient number, since it is larger than the sum of its proper divisors (1).

14618921 is an equidigital number, since it uses as much as digits as its factorization.

14618921 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456, while the sum is 32.

The square root of 14618921 is about 3823.4697592632. The cubic root of 14618921 is about 244.5147747507.

The spelling of 14618921 in words is "fourteen million, six hundred eighteen thousand, nine hundred twenty-one".