420125154 has 16 divisors (see below), whose sum is σ = 841032192. Its totient is φ = 139911408.

The previous prime is 420125149. The next prime is 420125177. The reversal of 420125154 is 451521024.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25474 + ... + 38589.

It is an arithmetic number, because the mean of its divisors is an integer number (52564512).

Almost surely, 2^420125154 is an apocalyptic number.

420125154 is an abundant number, since it is smaller than the sum of its proper divisors (420907038).

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

420125154 is a wasteful number, since it uses less digits than its factorization.

420125154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65161.

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 420125154 is about 20496.9547494256. The cubic root of 420125154 is about 748.9616172340.

Adding to 420125154 its reverse (451521024), we get a palindrome (871646178).

The spelling of 420125154 in words is "four hundred twenty million, one hundred twenty-five thousand, one hundred fifty-four".