18124451 has 2 divisors, whose sum is σ = 18124452. Its totient is φ = 18124450.

The previous prime is 18124439. The next prime is 18124453. The reversal of 18124451 is 15442181.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18124451 - 2¹⁴ = 18108067 is a prime.

Together with 18124453, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18124451.

It is not a weakly prime, because it can be changed into another prime (18124453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9062225 + 9062226.

It is an arithmetic number, because the mean of its divisors is an integer number (9062226).

Almost surely, 2^18124451 is an apocalyptic number.

18124451 is a deficient number, since it is larger than the sum of its proper divisors (1).

18124451 is an equidigital number, since it uses as much as digits as its factorization.

18124451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1280, while the sum is 26.

The square root of 18124451 is about 4257.2821142132. The cubic root of 18124451 is about 262.6767414418.

The spelling of 18124451 in words is "eighteen million, one hundred twenty-four thousand, four hundred fifty-one".