18253099 has 16 divisors (see below), whose sum is σ = 19863360. Its totient is φ = 16727040.

The previous prime is 18253073. The next prime is 18253117. The reversal of 18253099 is 99035281.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18253099 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18253009) 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 in 15 ways as a sum of consecutive naturals, for example, 75619 + ... + 75859.

It is an arithmetic number, because the mean of its divisors is an integer number (1241460).

Almost surely, 2^18253099 is an apocalyptic number.

18253099 is a deficient number, since it is larger than the sum of its proper divisors (1610261).

18253099 is a wasteful number, since it uses less digits than its factorization.

18253099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390.

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 18253099 is about 4272.3645677774. The cubic root of 18253099 is about 263.2967730404.

The spelling of 18253099 in words is "eighteen million, two hundred fifty-three thousand, ninety-nine".