420514069 has 2 divisors, whose sum is σ = 420514070. Its totient is φ = 420514068.

The previous prime is 420514067. The next prime is 420514103. The reversal of 420514069 is 960415024.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 412617969 + 7896100 = 20313^2 + 2810^2 .

It is a cyclic number.

It is not a de Polignac number, because 420514069 - 2¹ = 420514067 is a prime.

It is a super-2 number, since 2×420514069² = 353664164453873522, which contains 22 as substring.

Together with 420514067, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 420514069.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420514067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210257034 + 210257035.

It is an arithmetic number, because the mean of its divisors is an integer number (210257035).

Almost surely, 2^420514069 is an apocalyptic number.

It is an amenable number.

420514069 is a deficient number, since it is larger than the sum of its proper divisors (1).

420514069 is an equidigital number, since it uses as much as digits as its factorization.

420514069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 420514069 is about 20506.4396958614. The cubic root of 420514069 is about 749.1926536046.

The spelling of 420514069 in words is "four hundred twenty million, five hundred fourteen thousand, sixty-nine".