18413119 has 4 divisors (see below), whose sum is σ = 18441720. Its totient is φ = 18384520.

The previous prime is 18413113. The next prime is 18413137. The reversal of 18413119 is 91131481.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 18413119 - 2³ = 18413111 is a prime.

It is a super-2 number, since 2×18413119² = 678085902616322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18413111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13312 + ... + 14629.

It is an arithmetic number, because the mean of its divisors is an integer number (4610430).

Almost surely, 2^18413119 is an apocalyptic number.

18413119 is a deficient number, since it is larger than the sum of its proper divisors (28601).

18413119 is an equidigital number, since it uses as much as digits as its factorization.

18413119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28600.

The product of its digits is 864, while the sum is 28.

The square root of 18413119 is about 4291.0510367508. The cubic root of 18413119 is about 264.0639527878.

The spelling of 18413119 in words is "eighteen million, four hundred thirteen thousand, one hundred nineteen".