14573991 has 4 divisors (see below), whose sum is σ = 19431992. Its totient is φ = 9715992.

The previous prime is 14573989. The next prime is 14574013. The reversal of 14573991 is 19937541.

It is a happy number.

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

It is not a de Polignac number, because 14573991 - 2¹ = 14573989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14573941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2428996 + ... + 2429001.

It is an arithmetic number, because the mean of its divisors is an integer number (4857998).

Almost surely, 2^14573991 is an apocalyptic number.

14573991 is a deficient number, since it is larger than the sum of its proper divisors (4858001).

14573991 is an equidigital number, since it uses as much as digits as its factorization.

14573991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4858000.

The product of its digits is 34020, while the sum is 39.

The square root of 14573991 is about 3817.5896846047. The cubic root of 14573991 is about 244.2640192862.

The spelling of 14573991 in words is "fourteen million, five hundred seventy-three thousand, nine hundred ninety-one".