425100144 has 40 divisors (see below), whose sum is σ = 1255058560. Its totient is φ = 121457088.

The previous prime is 425100139. The next prime is 425100161. The reversal of 425100144 is 441001524.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 425100144.

It is a congruent 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, 632254 + ... + 632925.

It is an arithmetic number, because the mean of its divisors is an integer number (31376464).

Almost surely, 2^425100144 is an apocalyptic number.

It is an amenable number.

425100144 is an abundant number, since it is smaller than the sum of its proper divisors (829958416).

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

425100144 is a wasteful number, since it uses less digits than its factorization.

425100144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1265197 (or 1265191 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 425100144 is about 20617.9568337893. The cubic root of 425100144 is about 751.9063467948.

Adding to 425100144 its reverse (441001524), we get a palindrome (866101668).

The spelling of 425100144 in words is "four hundred twenty-five million, one hundred thousand, one hundred forty-four".