233730961 has 4 divisors (see below), whose sum is σ = 240048052. Its totient is φ = 227413872.

The previous prime is 233730947. The next prime is 233730967. The reversal of 233730961 is 169037332.

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 95433361 + 138297600 = 9769^2 + 11760^2 .

It is a cyclic number.

It is not a de Polignac number, because 233730961 - 2²³ = 225342353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (233730967) 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, 3158490 + ... + 3158563.

It is an arithmetic number, because the mean of its divisors is an integer number (60012013).

Almost surely, 2^233730961 is an apocalyptic number.

It is an amenable number.

233730961 is a deficient number, since it is larger than the sum of its proper divisors (6317091).

233730961 is an equidigital number, since it uses as much as digits as its factorization.

233730961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6317090.

The product of its (nonzero) digits is 20412, while the sum is 34.

The square root of 233730961 is about 15288.2621968620. The cubic root of 233730961 is about 615.9877585483.

The spelling of 233730961 in words is "two hundred thirty-three million, seven hundred thirty thousand, nine hundred sixty-one".