18574113 has 4 divisors (see below), whose sum is σ = 24765488. Its totient is φ = 12382740.

The previous prime is 18574103. The next prime is 18574121. The reversal of 18574113 is 31147581.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31147581 = 3 ⋅10382527.

It is not a de Polignac number, because 18574113 - 2¹² = 18570017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18574103) 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, 3095683 + ... + 3095688.

It is an arithmetic number, because the mean of its divisors is an integer number (6191372).

Almost surely, 2^18574113 is an apocalyptic number.

It is an amenable number.

18574113 is a deficient number, since it is larger than the sum of its proper divisors (6191375).

18574113 is an equidigital number, since it uses as much as digits as its factorization.

18574113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6191374.

The product of its digits is 3360, while the sum is 30.

The square root of 18574113 is about 4309.7694833947. The cubic root of 18574113 is about 264.8313297131.

The spelling of 18574113 in words is "eighteen million, five hundred seventy-four thousand, one hundred thirteen".