18232965 has 16 divisors (see below), whose sum is σ = 32414400. Its totient is φ = 9724176.

The previous prime is 18232943. The next prime is 18232979. The reversal of 18232965 is 56923281.

It is not a de Polignac number, because 18232965 - 2¹¹ = 18230917 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67395 + ... + 67664.

It is an arithmetic number, because the mean of its divisors is an integer number (2025900).

Almost surely, 2^18232965 is an apocalyptic number.

18232965 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18232965 is a deficient number, since it is larger than the sum of its proper divisors (14181435).

18232965 is a wasteful number, since it uses less digits than its factorization.

18232965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135073 (or 135067 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 18232965 is about 4270.0076112344. The cubic root of 18232965 is about 263.1999279771.

The spelling of 18232965 in words is "eighteen million, two hundred thirty-two thousand, nine hundred sixty-five".