42313613 has 2 divisors, whose sum is σ = 42313614. Its totient is φ = 42313612.

The previous prime is 42313603. The next prime is 42313633. The reversal of 42313613 is 31631324.

42313613 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., 21501769 + 20811844 = 4637^2 + 4562^2 .

42313613 is a truncatable prime.

It is a cyclic number.

It is not a de Polignac number, because 42313613 - 2²² = 38119309 is a prime.

It is a super-2 number, since 2×42313613² = 3580883690227538, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42313603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21156806 + 21156807.

It is an arithmetic number, because the mean of its divisors is an integer number (21156807).

Almost surely, 2^42313613 is an apocalyptic number.

It is an amenable number.

42313613 is a deficient number, since it is larger than the sum of its proper divisors (1).

42313613 is an equidigital number, since it uses as much as digits as its factorization.

42313613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1296, while the sum is 23.

The square root of 42313613 is about 6504.8914671961. The cubic root of 42313613 is about 348.4657002238.

Adding to 42313613 its reverse (31631324), we get a palindrome (73944937).

The spelling of 42313613 in words is "forty-two million, three hundred thirteen thousand, six hundred thirteen".