233507081 has 2 divisors, whose sum is σ = 233507082. Its totient is φ = 233507080.

The previous prime is 233507041. The next prime is 233507089. The reversal of 233507081 is 180705332.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 232105225 + 1401856 = 15235^2 + 1184^2 .

It is a cyclic number.

It is not a de Polignac number, because 233507081 - 2¹⁸ = 233244937 is a prime.

It is a super-2 number, since 2×233507081² = 109051113754281122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (233507089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116753540 + 116753541.

It is an arithmetic number, because the mean of its divisors is an integer number (116753541).

Almost surely, 2^233507081 is an apocalyptic number.

It is an amenable number.

233507081 is a deficient number, since it is larger than the sum of its proper divisors (1).

233507081 is an equidigital number, since it uses as much as digits as its factorization.

233507081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 233507081 is about 15280.9384855774. The cubic root of 233507081 is about 615.7910203927.

The spelling of 233507081 in words is "two hundred thirty-three million, five hundred seven thousand, eighty-one".