125404100 has 36 divisors (see below), whose sum is σ = 279489924. Its totient is φ = 48804480.

The previous prime is 125404061. The next prime is 125404127. The reversal of 125404100 is 1404521.

It can be written as a sum of positive squares in 6 ways, for example, as 5982916 + 119421184 = 2446^2 + 10928^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13247 + ... + 20646.

It is an arithmetic number, because the mean of its divisors is an integer number (7763609).

Almost surely, 2^125404100 is an apocalyptic number.

125404100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125404100 is an abundant number, since it is smaller than the sum of its proper divisors (154085824).

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

125404100 is a wasteful number, since it uses less digits than its factorization.

125404100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33944 (or 33937 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 125404100 is about 11198.3972067435. The cubic root of 125404100 is about 500.5382204297.

Adding to 125404100 its reverse (1404521), we get a palindrome (126808621).

The spelling of 125404100 in words is "one hundred twenty-five million, four hundred four thousand, one hundred".