233644157 has 2 divisors, whose sum is σ = 233644158. Its totient is φ = 233644156.

The previous prime is 233644129. The next prime is 233644181. The reversal of 233644157 is 751446332.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 119880601 + 113763556 = 10949^2 + 10666^2 .

It is a cyclic number.

It is not a de Polignac number, because 233644157 - 2⁶ = 233644093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (233644057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116822078 + 116822079.

It is an arithmetic number, because the mean of its divisors is an integer number (116822079).

Almost surely, 2^233644157 is an apocalyptic number.

It is an amenable number.

233644157 is a deficient number, since it is larger than the sum of its proper divisors (1).

233644157 is an equidigital number, since it uses as much as digits as its factorization.

233644157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60480, while the sum is 35.

The square root of 233644157 is about 15285.4230232598. The cubic root of 233644157 is about 615.9114930536.

The spelling of 233644157 in words is "two hundred thirty-three million, six hundred forty-four thousand, one hundred fifty-seven".