233140565 has 16 divisors (see below), whose sum is σ = 325157760. Its totient is φ = 157156800.

The previous prime is 233140561. The next prime is 233140619. The reversal of 233140565 is 565041332.

It is not a de Polignac number, because 233140565 - 2² = 233140561 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233140561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54386 + ... + 58515.

It is an arithmetic number, because the mean of its divisors is an integer number (20322360).

Almost surely, 2^233140565 is an apocalyptic number.

It is an amenable number.

233140565 is a deficient number, since it is larger than the sum of its proper divisors (92017195).

233140565 is a wasteful number, since it uses less digits than its factorization.

233140565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112972.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 233140565 is about 15268.9411879148. The cubic root of 233140565 is about 615.4686669269.

Adding to 233140565 its reverse (565041332), we get a palindrome (798181897).

The spelling of 233140565 in words is "two hundred thirty-three million, one hundred forty thousand, five hundred sixty-five".