405662113 has 2 divisors, whose sum is σ = 405662114. Its totient is φ = 405662112.

The previous prime is 405662107. The next prime is 405662137. The reversal of 405662113 is 311266504.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 400680289 + 4981824 = 20017^2 + 2232^2 .

It is a cyclic number.

It is not a de Polignac number, because 405662113 - 2⁹ = 405661601 is a prime.

It is not a weakly prime, because it can be changed into another prime (405662183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202831056 + 202831057.

It is an arithmetic number, because the mean of its divisors is an integer number (202831057).

Almost surely, 2^405662113 is an apocalyptic number.

It is an amenable number.

405662113 is a deficient number, since it is larger than the sum of its proper divisors (1).

405662113 is an equidigital number, since it uses as much as digits as its factorization.

405662113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 405662113 is about 20141.0554092878. The cubic root of 405662113 is about 740.2665907014.

The spelling of 405662113 in words is "four hundred five million, six hundred sixty-two thousand, one hundred thirteen".