14997021 has 32 divisors (see below), whose sum is σ = 22522752. Its totient is φ = 8816640.

The previous prime is 14996959. The next prime is 14997041. The reversal of 14997021 is 12079941.

It is not a de Polignac number, because 14997021 - 2⁶ = 14996957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14997041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 132661 + ... + 132773.

It is an arithmetic number, because the mean of its divisors is an integer number (703836).

Almost surely, 2^14997021 is an apocalyptic number.

It is an amenable number.

14997021 is a deficient number, since it is larger than the sum of its proper divisors (7525731).

14997021 is a wasteful number, since it uses less digits than its factorization.

14997021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253.

The product of its (nonzero) digits is 4536, while the sum is 33.

The square root of 14997021 is about 3872.5987398645. The cubic root of 14997021 is about 246.6048800282.

The spelling of 14997021 in words is "fourteen million, nine hundred ninety-seven thousand, twenty-one".