18132451 has 2 divisors, whose sum is σ = 18132452. Its totient is φ = 18132450.

The previous prime is 18132437. The next prime is 18132467. The reversal of 18132451 is 15423181.

It is a weak prime.

It is an emirp because it is prime and its reverse (15423181) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18132451 - 2⁵ = 18132419 is a prime.

It is not a weakly prime, because it can be changed into another prime (18132431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9066225 + 9066226.

It is an arithmetic number, because the mean of its divisors is an integer number (9066226).

Almost surely, 2^18132451 is an apocalyptic number.

18132451 is a deficient number, since it is larger than the sum of its proper divisors (1).

18132451 is an equidigital number, since it uses as much as digits as its factorization.

18132451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 960, while the sum is 25.

The square root of 18132451 is about 4258.2215771376. The cubic root of 18132451 is about 262.7153836205.

The spelling of 18132451 in words is "eighteen million, one hundred thirty-two thousand, four hundred fifty-one".