14931921 has 8 divisors (see below), whose sum is σ = 19984320. Its totient is φ = 9917072.

The previous prime is 14931919. The next prime is 14931953. The reversal of 14931921 is 12913941.

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 14931921 - 2¹ = 14931919 is a prime.

It is not an unprimeable number, because it can be changed into a prime (14931901) 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, 8445 + ... + 10058.

It is an arithmetic number, because the mean of its divisors is an integer number (2498040).

Almost surely, 2^14931921 is an apocalyptic number.

It is an amenable number.

14931921 is a deficient number, since it is larger than the sum of its proper divisors (5052399).

14931921 is a wasteful number, since it uses less digits than its factorization.

14931921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18775.

The product of its digits is 1944, while the sum is 30.

The square root of 14931921 is about 3864.1843900104. The cubic root of 14931921 is about 246.2475365433.

The spelling of 14931921 in words is "fourteen million, nine hundred thirty-one thousand, nine hundred twenty-one".