18493053 has 8 divisors (see below), whose sum is σ = 25231008. Its totient is φ = 12041904.

The previous prime is 18493021. The next prime is 18493073. The reversal of 18493053 is 35039481.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 18493053 - 2⁵ = 18493021 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18493073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71550 + ... + 71807.

It is an arithmetic number, because the mean of its divisors is an integer number (3153876).

Almost surely, 2^18493053 is an apocalyptic number.

It is an amenable number.

18493053 is a deficient number, since it is larger than the sum of its proper divisors (6737955).

18493053 is a wasteful number, since it uses less digits than its factorization.

18493053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143403.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 18493053 is about 4300.3549853471. The cubic root of 18493053 is about 264.4455143910.

The spelling of 18493053 in words is "eighteen million, four hundred ninety-three thousand, fifty-three".