18099007 has 2 divisors, whose sum is σ = 18099008. Its totient is φ = 18099006.

The previous prime is 18098923. The next prime is 18099013. The reversal of 18099007 is 70099081.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18099007 - 2⁷ = 18098879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18099047) 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, 9049503 + 9049504.

It is an arithmetic number, because the mean of its divisors is an integer number (9049504).

Almost surely, 2^18099007 is an apocalyptic number.

18099007 is a deficient number, since it is larger than the sum of its proper divisors (1).

18099007 is an equidigital number, since it uses as much as digits as its factorization.

18099007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 34.

The square root of 18099007 is about 4254.2927731880. The cubic root of 18099007 is about 262.5537643465.

It can be divided in two parts, 1809 and 9007, that added together give a square (10816 = 104²).

The spelling of 18099007 in words is "eighteen million, ninety-nine thousand, seven".