14571921 has 16 divisors (see below), whose sum is σ = 23913344. Its totient is φ = 7686144.

The previous prime is 14571913. The next prime is 14571923. The reversal of 14571921 is 12917541.

It is not a de Polignac number, because 14571921 - 2³ = 14571913 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (14571923) 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 15 ways as a sum of consecutive naturals, for example, 26416 + ... + 26961.

It is an arithmetic number, because the mean of its divisors is an integer number (1494584).

Almost surely, 2^14571921 is an apocalyptic number.

It is an amenable number.

14571921 is a deficient number, since it is larger than the sum of its proper divisors (9341423).

14571921 is a wasteful number, since it uses less digits than its factorization.

14571921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53400.

The product of its digits is 2520, while the sum is 30.

The square root of 14571921 is about 3817.3185615036. The cubic root of 14571921 is about 244.2524541526.

The spelling of 14571921 in words is "fourteen million, five hundred seventy-one thousand, nine hundred twenty-one".