42910513 has 2 divisors, whose sum is σ = 42910514. Its totient is φ = 42910512.

The previous prime is 42910501. The next prime is 42910561. The reversal of 42910513 is 31501924.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34012224 + 8898289 = 5832^2 + 2983^2 .

It is a cyclic number.

It is not a de Polignac number, because 42910513 - 2²¹ = 40813361 is a prime.

It is not a weakly prime, because it can be changed into another prime (42910573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21455256 + 21455257.

It is an arithmetic number, because the mean of its divisors is an integer number (21455257).

Almost surely, 2^42910513 is an apocalyptic number.

It is an amenable number.

42910513 is a deficient number, since it is larger than the sum of its proper divisors (1).

42910513 is an equidigital number, since it uses as much as digits as its factorization.

42910513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 42910513 is about 6550.6116508308. The cubic root of 42910513 is about 350.0966073455.

The spelling of 42910513 in words is "forty-two million, nine hundred ten thousand, five hundred thirteen".