420151146 has 16 divisors (see below), whose sum is σ = 850427424. Its totient is φ = 138362864.

The previous prime is 420151129. The next prime is 420151163. The reversal of 420151146 is 641151024.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (420151129) and next prime (420151163).

It is a super-2 number, since 2×420151146² = 353053970970226632, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 421341 + ... + 422336.

It is an arithmetic number, because the mean of its divisors is an integer number (53151714).

Almost surely, 2^420151146 is an apocalyptic number.

420151146 is an abundant number, since it is smaller than the sum of its proper divisors (430276278).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

420151146 is a wasteful number, since it uses less digits than its factorization.

420151146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 843765.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 420151146 is about 20497.5887850254. The cubic root of 420151146 is about 748.9770623212.

The spelling of 420151146 in words is "four hundred twenty million, one hundred fifty-one thousand, one hundred forty-six".