18098651 has 2 divisors, whose sum is σ = 18098652. Its totient is φ = 18098650.

The previous prime is 18098627. The next prime is 18098669. The reversal of 18098651 is 15689081.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18098651 - 2²² = 13904347 is a prime.

It is a super-2 number, since 2×18098651² = 655122336039602, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (18098611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9049325 + 9049326.

It is an arithmetic number, because the mean of its divisors is an integer number (9049326).

Almost surely, 2^18098651 is an apocalyptic number.

18098651 is a deficient number, since it is larger than the sum of its proper divisors (1).

18098651 is an equidigital number, since it uses as much as digits as its factorization.

18098651 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 38.

The square root of 18098651 is about 4254.2509328905. The cubic root of 18098651 is about 262.5520428938.

The spelling of 18098651 in words is "eighteen million, ninety-eight thousand, six hundred fifty-one".