240913 has 2 divisors, whose sum is σ = 240914. Its totient is φ = 240912.

The previous prime is 240899. The next prime is 240943. The reversal of 240913 is 319042.

240913 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., 186624 + 54289 = 432^2 + 233^2 .

It is a cyclic number.

It is not a de Polignac number, because 240913 - 2⁵ = 240881 is a prime.

It is not a weakly prime, because it can be changed into another prime (240943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120456 + 120457.

It is an arithmetic number, because the mean of its divisors is an integer number (120457).

2²⁴⁰⁹¹³ is an apocalyptic number.

It is an amenable number.

240913 is a deficient number, since it is larger than the sum of its proper divisors (1).

240913 is an equidigital number, since it uses as much as digits as its factorization.

240913 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 240913 is about 490.8288907552. The cubic root of 240913 is about 62.2233532721.

Adding to 240913 its reverse (319042), we get a palindrome (559955).

The spelling of 240913 in words is "two hundred forty thousand, nine hundred thirteen".