14992421 has 4 divisors (see below), whose sum is σ = 15015372. Its totient is φ = 14969472.

The previous prime is 14992409. The next prime is 14992427. The reversal of 14992421 is 12429941.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12429941 = 17 ⋅731173.

It can be written as a sum of positive squares in 2 ways, for example, as 8916196 + 6076225 = 2986^2 + 2465^2 .

It is a cyclic number.

It is not a de Polignac number, because 14992421 - 2⁶ = 14992357 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 (14992427) 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, 10466 + ... + 11811.

It is an arithmetic number, because the mean of its divisors is an integer number (3753843).

Almost surely, 2^14992421 is an apocalyptic number.

It is an amenable number.

14992421 is a deficient number, since it is larger than the sum of its proper divisors (22951).

14992421 is an equidigital number, since it uses as much as digits as its factorization.

14992421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22950.

The product of its digits is 5184, while the sum is 32.

The square root of 14992421 is about 3872.0047778896. The cubic root of 14992421 is about 246.5796639436.

The spelling of 14992421 in words is "fourteen million, nine hundred ninety-two thousand, four hundred twenty-one".