233388157 has 2 divisors, whose sum is σ = 233388158. Its totient is φ = 233388156.

The previous prime is 233388139. The next prime is 233388161. The reversal of 233388157 is 751883332.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 116877721 + 116510436 = 10811^2 + 10794^2 .

It is a cyclic number.

It is not a de Polignac number, because 233388157 - 2²⁷ = 99170429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (233388187) 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 as a sum of consecutive naturals, namely, 116694078 + 116694079.

It is an arithmetic number, because the mean of its divisors is an integer number (116694079).

Almost surely, 2^233388157 is an apocalyptic number.

It is an amenable number.

233388157 is a deficient number, since it is larger than the sum of its proper divisors (1).

233388157 is an equidigital number, since it uses as much as digits as its factorization.

233388157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 40.

The square root of 233388157 is about 15277.0467368533. The cubic root of 233388157 is about 615.6864628681.

The spelling of 233388157 in words is "two hundred thirty-three million, three hundred eighty-eight thousand, one hundred fifty-seven".