18100325 has 12 divisors (see below), whose sum is σ = 23765220. Its totient is φ = 13628160.

The previous prime is 18100319. The next prime is 18100337. The reversal of 18100325 is 52300181.

It can be written as a sum of positive squares in 6 ways, for example, as 744769 + 17355556 = 863^2 + 4166^2 .

It is not a de Polignac number, because 18100325 - 2⁶ = 18100261 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 18100297 and 18100306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20870 + ... + 21719.

It is an arithmetic number, because the mean of its divisors is an integer number (1980435).

Almost surely, 2^18100325 is an apocalyptic number.

It is an amenable number.

18100325 is a deficient number, since it is larger than the sum of its proper divisors (5664895).

18100325 is a wasteful number, since it uses less digits than its factorization.

18100325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42616 (or 42611 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 18100325 is about 4254.4476727303. The cubic root of 18100325 is about 262.5601373934.

The spelling of 18100325 in words is "eighteen million, one hundred thousand, three hundred twenty-five".