405305012297 has 2 divisors, whose sum is σ = 405305012298. Its totient is φ = 405305012296.

The previous prime is 405305012279. The next prime is 405305012393. The reversal of 405305012297 is 792210503504.

Together with previous prime (405305012279) 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., 358796208016 + 46508804281 = 598996^2 + 215659^2 .

It is a cyclic number.

It is not a de Polignac number, because 405305012297 - 2¹⁰ = 405305011273 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 405305012297.

It is not a weakly prime, because it can be changed into another prime (405305012227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202652506148 + 202652506149.

It is an arithmetic number, because the mean of its divisors is an integer number (202652506149).

Almost surely, 2^405305012297 is an apocalyptic number.

It is an amenable number.

405305012297 is a deficient number, since it is larger than the sum of its proper divisors (1).

405305012297 is an equidigital number, since it uses as much as digits as its factorization.

405305012297 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 75600, while the sum is 38.

The spelling of 405305012297 in words is "four hundred five billion, three hundred five million, twelve thousand, two hundred ninety-seven".