14992381 has 4 divisors (see below), whose sum is σ = 15000412. Its totient is φ = 14984352.

The previous prime is 14992379. The next prime is 14992409. The reversal of 14992381 is 18329941.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 13623481 + 1368900 = 3691^2 + 1170^2 .

It is a cyclic number.

It is not a de Polignac number, because 14992381 - 2¹ = 14992379 is a prime.

It is a super-2 number, since 2×14992381² = 449542976098322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 14992381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14992301) 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, 415 + ... + 5491.

It is an arithmetic number, because the mean of its divisors is an integer number (3750103).

Almost surely, 2^14992381 is an apocalyptic number.

14992381 is the 2236-th hex number.

It is an amenable number.

14992381 is a deficient number, since it is larger than the sum of its proper divisors (8031).

14992381 is an equidigital number, since it uses as much as digits as its factorization.

14992381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8030.

The product of its digits is 15552, while the sum is 37.

The square root of 14992381 is about 3871.9996126033. Note that the first 3 decimals coincide. The cubic root of 14992381 is about 246.5794446507.

The spelling of 14992381 in words is "fourteen million, nine hundred ninety-two thousand, three hundred eighty-one".