18275965 has 16 divisors (see below), whose sum is σ = 22675968. Its totient is φ = 14129856.

The previous prime is 18275963. The next prime is 18275977. The reversal of 18275965 is 56957281.

It is not a de Polignac number, because 18275965 - 2¹ = 18275963 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18275963) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41034 + ... + 41476.

It is an arithmetic number, because the mean of its divisors is an integer number (1417248).

Almost surely, 2^18275965 is an apocalyptic number.

It is an amenable number.

18275965 is a deficient number, since it is larger than the sum of its proper divisors (4400003).

18275965 is a wasteful number, since it uses less digits than its factorization.

18275965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708.

The product of its digits is 151200, while the sum is 43.

The square root of 18275965 is about 4275.0397658969. The cubic root of 18275965 is about 263.4066727665.

The spelling of 18275965 in words is "eighteen million, two hundred seventy-five thousand, nine hundred sixty-five".