18453089 has 2 divisors, whose sum is σ = 18453090. Its totient is φ = 18453088.

The previous prime is 18453079. The next prime is 18453101. The reversal of 18453089 is 98035481.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18318400 + 134689 = 4280^2 + 367^2 .

It is a cyclic number.

It is not a de Polignac number, because 18453089 - 2²⁴ = 1675873 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (18453059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9226544 + 9226545.

It is an arithmetic number, because the mean of its divisors is an integer number (9226545).

Almost surely, 2^18453089 is an apocalyptic number.

It is an amenable number.

18453089 is a deficient number, since it is larger than the sum of its proper divisors (1).

18453089 is an equidigital number, since it uses as much as digits as its factorization.

18453089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 18453089 is about 4295.7058791309. The cubic root of 18453089 is about 264.2548856454.

The spelling of 18453089 in words is "eighteen million, four hundred fifty-three thousand, eighty-nine".