420151279 has 2 divisors, whose sum is σ = 420151280. Its totient is φ = 420151278.

The previous prime is 420151267. The next prime is 420151321. The reversal of 420151279 is 972151024.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-420151279 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 420151279.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420151679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210075639 + 210075640.

It is an arithmetic number, because the mean of its divisors is an integer number (210075640).

Almost surely, 2^420151279 is an apocalyptic number.

420151279 is a deficient number, since it is larger than the sum of its proper divisors (1).

420151279 is an equidigital number, since it uses as much as digits as its factorization.

420151279 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 420151279 is about 20497.5920293092. The cubic root of 420151279 is about 748.9771413515.

The spelling of 420151279 in words is "four hundred twenty million, one hundred fifty-one thousand, two hundred seventy-nine".