240297331 has 2 divisors, whose sum is σ = 240297332. Its totient is φ = 240297330.

The previous prime is 240297301. The next prime is 240297349. The reversal of 240297331 is 133792042.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 240297331 - 2¹³ = 240289139 is a prime.

It is a super-2 number, since 2×240297331² = 115485614571447122, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 240297293 and 240297302.

It is not a weakly prime, because it can be changed into another prime (240297301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120148665 + 120148666.

It is an arithmetic number, because the mean of its divisors is an integer number (120148666).

Almost surely, 2^240297331 is an apocalyptic number.

240297331 is a deficient number, since it is larger than the sum of its proper divisors (1).

240297331 is an equidigital number, since it uses as much as digits as its factorization.

240297331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 240297331 is about 15501.5267312610. The cubic root of 240297331 is about 621.7030276593.

The spelling of 240297331 in words is "two hundred forty million, two hundred ninety-seven thousand, three hundred thirty-one".