240988081 has 2 divisors, whose sum is σ = 240988082. Its totient is φ = 240988080.

The previous prime is 240988031. The next prime is 240988087. The reversal of 240988081 is 180889042.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 146023056 + 94965025 = 12084^2 + 9745^2 .

It is a cyclic number.

It is not a de Polignac number, because 240988081 - 2⁹ = 240987569 is a prime.

It is a super-2 number, since 2×240988081² = 116150510368125122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (240988087) 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, 120494040 + 120494041.

It is an arithmetic number, because the mean of its divisors is an integer number (120494041).

Almost surely, 2^240988081 is an apocalyptic number.

It is an amenable number.

240988081 is a deficient number, since it is larger than the sum of its proper divisors (1).

240988081 is an equidigital number, since it uses as much as digits as its factorization.

240988081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36864, while the sum is 40.

The square root of 240988081 is about 15523.7908063720. The cubic root of 240988081 is about 622.2981661001.

The spelling of 240988081 in words is "two hundred forty million, nine hundred eighty-eight thousand, eighty-one".