233155057 has 2 divisors, whose sum is σ = 233155058. Its totient is φ = 233155056.

The previous prime is 233155031. The next prime is 233155067. The reversal of 233155057 is 750551332.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 193098816 + 40056241 = 13896^2 + 6329^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-233155057 is a prime.

It is a super-2 number, since 2×233155057² = 108722561209346498, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (233155007) 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, 116577528 + 116577529.

It is an arithmetic number, because the mean of its divisors is an integer number (116577529).

Almost surely, 2^233155057 is an apocalyptic number.

It is an amenable number.

233155057 is a deficient number, since it is larger than the sum of its proper divisors (1).

233155057 is an equidigital number, since it uses as much as digits as its factorization.

233155057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15750, while the sum is 31.

The square root of 233155057 is about 15269.4157386588. The cubic root of 233155057 is about 615.4814191580.

The spelling of 233155057 in words is "two hundred thirty-three million, one hundred fifty-five thousand, fifty-seven".