18354625 has 8 divisors (see below), whose sum is σ = 22906728. Its totient is φ = 14683600.

The previous prime is 18354613. The next prime is 18354641. The reversal of 18354625 is 52645381.

It can be written as a sum of positive squares in 4 ways, for example, as 571536 + 17783089 = 756^2 + 4217^2 .

It is not a de Polignac number, because 18354625 - 2¹⁵ = 18321857 is a prime.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73294 + ... + 73543.

It is an arithmetic number, because the mean of its divisors is an integer number (2863341).

Almost surely, 2^18354625 is an apocalyptic number.

It is an amenable number.

18354625 is a deficient number, since it is larger than the sum of its proper divisors (4552103).

18354625 is an equidigital number, since it uses as much as digits as its factorization.

18354625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146852 (or 146842 counting only the distinct ones).

The product of its digits is 28800, while the sum is 34.

The square root of 18354625 is about 4284.2298024266. The cubic root of 18354625 is about 263.7840338523.

The spelling of 18354625 in words is "eighteen million, three hundred fifty-four thousand, six hundred twenty-five".