240233557 has 2 divisors, whose sum is σ = 240233558. Its totient is φ = 240233556.

The previous prime is 240233537. The next prime is 240233599. The reversal of 240233557 is 755332042.

240233557 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 123787876 + 116445681 = 11126^2 + 10791^2 .

It is a cyclic number.

It is not a de Polignac number, because 240233557 - 2¹⁵ = 240200789 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (240233537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120116778 + 120116779.

It is an arithmetic number, because the mean of its divisors is an integer number (120116779).

Almost surely, 2^240233557 is an apocalyptic number.

It is an amenable number.

240233557 is a deficient number, since it is larger than the sum of its proper divisors (1).

240233557 is an equidigital number, since it uses as much as digits as its factorization.

240233557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25200, while the sum is 31.

The square root of 240233557 is about 15499.4695715692. The cubic root of 240233557 is about 621.6480235848.

Adding to 240233557 its reverse (755332042), we get a palindrome (995565599).

The spelling of 240233557 in words is "two hundred forty million, two hundred thirty-three thousand, five hundred fifty-seven".