240791513 has 2 divisors, whose sum is σ = 240791514. Its totient is φ = 240791512.

The previous prime is 240791497. The next prime is 240791527. The reversal of 240791513 is 315197042.

240791513 = 10972² + 10973².

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120406729 + 120384784 = 10973^2 + 10972^2 .

It is a cyclic number.

It is not a de Polignac number, because 240791513 - 2⁴ = 240791497 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 240791513.

It is not a weakly prime, because it can be changed into another prime (240791563) 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, 120395756 + 120395757.

It is an arithmetic number, because the mean of its divisors is an integer number (120395757).

Almost surely, 2^240791513 is an apocalyptic number.

240791513 is the 10973-rd centered square number.

It is an amenable number.

240791513 is a deficient number, since it is larger than the sum of its proper divisors (1).

240791513 is an equidigital number, since it uses as much as digits as its factorization.

240791513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 240791513 is about 15517.4583292497. The cubic root of 240791513 is about 622.1289223498.

The spelling of 240791513 in words is "two hundred forty million, seven hundred ninety-one thousand, five hundred thirteen".