40516613 has 2 divisors, whose sum is σ = 40516614. Its totient is φ = 40516612.

The previous prime is 40516601. The next prime is 40516631. The reversal of 40516613 is 31661504.

Together with next prime (40516631) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21836929 + 18679684 = 4673^2 + 4322^2 .

It is a cyclic number.

It is not a de Polignac number, because 40516613 - 2¹² = 40512517 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40516633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20258306 + 20258307.

It is an arithmetic number, because the mean of its divisors is an integer number (20258307).

Almost surely, 2^40516613 is an apocalyptic number.

It is an amenable number.

40516613 is a deficient number, since it is larger than the sum of its proper divisors (1).

40516613 is an equidigital number, since it uses as much as digits as its factorization.

40516613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 40516613 is about 6365.2661374054. The cubic root of 40516613 is about 343.4612222426.

The spelling of 40516613 in words is "forty million, five hundred sixteen thousand, six hundred thirteen".