641525124 has 48 divisors (see below), whose sum is σ = 1639612800. Its totient is φ = 194320896.

The previous prime is 641525111. The next prime is 641525167. The reversal of 641525124 is 421525146.

It is a junction number, because it is equal to n+sod(n) for n = 641525091 and 641525100.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48304 + ... + 60135.

It is an arithmetic number, because the mean of its divisors is an integer number (34158600).

Almost surely, 2^641525124 is an apocalyptic number.

It is an amenable number.

641525124 is an abundant number, since it is smaller than the sum of its proper divisors (998087676).

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

641525124 is a wasteful number, since it uses less digits than its factorization.

641525124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108492 (or 108490 counting only the distinct ones).

The product of its digits is 9600, while the sum is 30.

The square root of 641525124 is about 25328.3462547400. The cubic root of 641525124 is about 862.4578704900.

The spelling of 641525124 in words is "six hundred forty-one million, five hundred twenty-five thousand, one hundred twenty-four".