14875921 has 4 divisors (see below), whose sum is σ = 14897844. Its totient is φ = 14854000.

The previous prime is 14875909. The next prime is 14875997. The reversal of 14875921 is 12957841.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13690000 + 1185921 = 3700^2 + 1089^2 .

It is a cyclic number.

It is not a de Polignac number, because 14875921 - 2⁹ = 14875409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14875321) 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 3 ways as a sum of consecutive naturals, for example, 9910 + ... + 11311.

It is an arithmetic number, because the mean of its divisors is an integer number (3724461).

Almost surely, 2^14875921 is an apocalyptic number.

It is an amenable number.

14875921 is a deficient number, since it is larger than the sum of its proper divisors (21923).

14875921 is an equidigital number, since it uses as much as digits as its factorization.

14875921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21922.

The product of its digits is 20160, while the sum is 37.

The square root of 14875921 is about 3856.9315524131. The cubic root of 14875921 is about 245.9393123702.

The spelling of 14875921 in words is "fourteen million, eight hundred seventy-five thousand, nine hundred twenty-one".