420854125 has 32 divisors (see below), whose sum is σ = 563947488. Its totient is φ = 312422400.

The previous prime is 420854117. The next prime is 420854129. The reversal of 420854125 is 521458024.

It can be written as a sum of positive squares in 16 ways, for example, as 90269001 + 330585124 = 9501^2 + 18182^2 .

It is not a de Polignac number, because 420854125 - 2³ = 420854117 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 (420854129) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 153769 + ... + 156481.

It is an arithmetic number, because the mean of its divisors is an integer number (17623359).

Almost surely, 2^420854125 is an apocalyptic number.

It is an amenable number.

420854125 is a deficient number, since it is larger than the sum of its proper divisors (143093363).

420854125 is a wasteful number, since it uses less digits than its factorization.

420854125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2818 (or 2808 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 31.

The square root of 420854125 is about 20514.7294644604. The cubic root of 420854125 is about 749.3945484064.

The spelling of 420854125 in words is "four hundred twenty million, eight hundred fifty-four thousand, one hundred twenty-five".