420115369 has 2 divisors, whose sum is σ = 420115370. Its totient is φ = 420115368.

The previous prime is 420115361. The next prime is 420115417. The reversal of 420115369 is 963511024.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 368448025 + 51667344 = 19195^2 + 7188^2 .

It is a cyclic number.

It is not a de Polignac number, because 420115369 - 2³ = 420115361 is a prime.

It is a super-2 number, since 2×420115369² = 352993846540012322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 420115369.

It is not a weakly prime, because it can be changed into another prime (420115361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210057684 + 210057685.

It is an arithmetic number, because the mean of its divisors is an integer number (210057685).

Almost surely, 2^420115369 is an apocalyptic number.

It is an amenable number.

420115369 is a deficient number, since it is larger than the sum of its proper divisors (1).

420115369 is an equidigital number, since it uses as much as digits as its factorization.

420115369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 420115369 is about 20496.7160540414. The cubic root of 420115369 is about 748.9558025807.

The spelling of 420115369 in words is "four hundred twenty million, one hundred fifteen thousand, three hundred sixty-nine".