233145530 has 16 divisors (see below), whose sum is σ = 420505344. Its totient is φ = 93070800.

The previous prime is 233145499. The next prime is 233145533. The reversal of 233145530 is 35541332.

233145530 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 233145530.

It is not an unprimeable number, because it can be changed into a prime (233145533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18146 + ... + 28205.

It is an arithmetic number, because the mean of its divisors is an integer number (26281584).

Almost surely, 2^233145530 is an apocalyptic number.

233145530 is a deficient number, since it is larger than the sum of its proper divisors (187359814).

233145530 is a wasteful number, since it uses less digits than its factorization.

233145530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46861.

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 233145530 is about 15269.1037719966. The cubic root of 233145530 is about 615.4730359367.

Adding to 233145530 its reverse (35541332), we get a palindrome (268686862).

The spelling of 233145530 in words is "two hundred thirty-three million, one hundred forty-five thousand, five hundred thirty".