420206151 has 8 divisors (see below), whose sum is σ = 575417584. Its totient is φ = 272566080.

The previous prime is 420206141. The next prime is 420206167. The reversal of 420206151 is 151602024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 420206151 - 2²⁵ = 386651719 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420206131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1892710 + ... + 1892931.

It is an arithmetic number, because the mean of its divisors is an integer number (71927198).

Almost surely, 2^420206151 is an apocalyptic number.

420206151 is a deficient number, since it is larger than the sum of its proper divisors (155211433).

420206151 is a wasteful number, since it uses less digits than its factorization.

420206151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3785681.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 420206151 is about 20498.9304842960. The cubic root of 420206151 is about 749.0097455480.

Adding to 420206151 its reverse (151602024), we get a palindrome (571808175).

The spelling of 420206151 in words is "four hundred twenty million, two hundred six thousand, one hundred fifty-one".