18315795 has 16 divisors (see below), whose sum is σ = 29376000. Its totient is φ = 9744864.

The previous prime is 18315763. The next prime is 18315809. The reversal of 18315795 is 59751381.

It is not a de Polignac number, because 18315795 - 2⁵ = 18315763 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6262 + ... + 8708.

It is an arithmetic number, because the mean of its divisors is an integer number (1836000).

Almost surely, 2^18315795 is an apocalyptic number.

18315795 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18315795 is a deficient number, since it is larger than the sum of its proper divisors (11060205).

18315795 is a wasteful number, since it uses less digits than its factorization.

18315795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2954.

The product of its digits is 37800, while the sum is 39.

The square root of 18315795 is about 4279.6956667501. The cubic root of 18315795 is about 263.5978870270.

It can be divided in two parts, 18315 and 795, that added together give a triangular number (19110 = T₁₉₅).

The spelling of 18315795 in words is "eighteen million, three hundred fifteen thousand, seven hundred ninety-five".