240045613 has 2 divisors, whose sum is σ = 240045614. Its totient is φ = 240045612.

The previous prime is 240045599. The next prime is 240045629. The reversal of 240045613 is 316540042.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 159441129 + 80604484 = 12627^2 + 8978^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-240045613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (240045643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120022806 + 120022807.

It is an arithmetic number, because the mean of its divisors is an integer number (120022807).

Almost surely, 2^240045613 is an apocalyptic number.

It is an amenable number.

240045613 is a deficient number, since it is larger than the sum of its proper divisors (1).

240045613 is an equidigital number, since it uses as much as digits as its factorization.

240045613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 240045613 is about 15493.4054681339. The cubic root of 240045613 is about 621.4858681959.

Adding to 240045613 its reverse (316540042), we get a palindrome (556585655).

The spelling of 240045613 in words is "two hundred forty million, forty-five thousand, six hundred thirteen".