233790145 has 4 divisors (see below), whose sum is σ = 280548180. Its totient is φ = 187032112.

The previous prime is 233790143. The next prime is 233790163. The reversal of 233790145 is 541097332.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 181387024 + 52403121 = 13468^2 + 7239^2 .

It is a cyclic number.

It is not a de Polignac number, because 233790145 - 2¹ = 233790143 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 233790145.

It is not an unprimeable number, because it can be changed into a prime (233790143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23379010 + ... + 23379019.

It is an arithmetic number, because the mean of its divisors is an integer number (70137045).

Almost surely, 2^233790145 is an apocalyptic number.

It is an amenable number.

233790145 is a deficient number, since it is larger than the sum of its proper divisors (46758035).

233790145 is an equidigital number, since it uses as much as digits as its factorization.

233790145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46758034.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 233790145 is about 15290.1976769432. The cubic root of 233790145 is about 616.0397464445.

The spelling of 233790145 in words is "two hundred thirty-three million, seven hundred ninety thousand, one hundred forty-five".