233213045 has 16 divisors (see below), whose sum is σ = 303594480. Its totient is φ = 170955264.

The previous prime is 233213039. The next prime is 233213053. The reversal of 233213045 is 540312332.

It can be written as a sum of positive squares in 8 ways, for example, as 528529 + 232684516 = 727^2 + 15254^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-233213045 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 233213045.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4190 + ... + 21999.

It is an arithmetic number, because the mean of its divisors is an integer number (18974655).

Almost surely, 2^233213045 is an apocalyptic number.

It is an amenable number.

233213045 is a deficient number, since it is larger than the sum of its proper divisors (70381435).

233213045 is a wasteful number, since it uses less digits than its factorization.

233213045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26344.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 233213045 is about 15271.3144489923. The cubic root of 233213045 is about 615.5324403947.

Adding to 233213045 its reverse (540312332), we get a palindrome (773525377).

The spelling of 233213045 in words is "two hundred thirty-three million, two hundred thirteen thousand, forty-five".