233221265 has 32 divisors (see below), whose sum is σ = 299033856. Its totient is φ = 174254080.

The previous prime is 233221237. The next prime is 233221273. The reversal of 233221265 is 562122332.

It is not a de Polignac number, because 233221265 - 2¹⁶ = 233155729 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1702277 + ... + 1702413.

It is an arithmetic number, because the mean of its divisors is an integer number (9344808).

Almost surely, 2^233221265 is an apocalyptic number.

It is an amenable number.

233221265 is a deficient number, since it is larger than the sum of its proper divisors (65812591).

233221265 is a wasteful number, since it uses less digits than its factorization.

233221265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409.

The product of its digits is 4320, while the sum is 26.

The square root of 233221265 is about 15271.5835786601. The cubic root of 233221265 is about 615.5396721474.

Adding to 233221265 its reverse (562122332), we get a palindrome (795343597).

The spelling of 233221265 in words is "two hundred thirty-three million, two hundred twenty-one thousand, two hundred sixty-five".