18174049 has 4 divisors (see below), whose sum is σ = 18275760. Its totient is φ = 18072340.

The previous prime is 18174047. The next prime is 18174053. The reversal of 18174049 is 94047181.

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.

It is a cyclic number.

It is not a de Polignac number, because 18174049 - 2¹ = 18174047 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18174047) 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, 50587 + ... + 50944.

It is an arithmetic number, because the mean of its divisors is an integer number (4568940).

Almost surely, 2^18174049 is an apocalyptic number.

It is an amenable number.

18174049 is a deficient number, since it is larger than the sum of its proper divisors (101711).

18174049 is a wasteful number, since it uses less digits than its factorization.

18174049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101710.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 18174049 is about 4263.1032124498. The cubic root of 18174049 is about 262.9161303024.

The spelling of 18174049 in words is "eighteen million, one hundred seventy-four thousand, forty-nine".