14997491 has 4 divisors (see below), whose sum is σ = 15012192. Its totient is φ = 14982792.

The previous prime is 14997457. The next prime is 14997503. The reversal of 14997491 is 19479941.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19479941 = 13 ⋅1498457.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14997491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14997421) 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, 5696 + ... + 7901.

It is an arithmetic number, because the mean of its divisors is an integer number (3753048).

Almost surely, 2^14997491 is an apocalyptic number.

14997491 is a deficient number, since it is larger than the sum of its proper divisors (14701).

14997491 is a wasteful number, since it uses less digits than its factorization.

14997491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14700.

The product of its digits is 81648, while the sum is 44.

The square root of 14997491 is about 3872.6594221542. The cubic root of 14997491 is about 246.6074561639.

The spelling of 14997491 in words is "fourteen million, nine hundred ninety-seven thousand, four hundred ninety-one".