125085820 has 12 divisors (see below), whose sum is σ = 262680264. Its totient is φ = 50034320.

The previous prime is 125085803. The next prime is 125085823. The reversal of 125085820 is 28580521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125085823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3127126 + ... + 3127165.

It is an arithmetic number, because the mean of its divisors is an integer number (21890022).

Almost surely, 2^125085820 is an apocalyptic number.

125085820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125085820 is an abundant number, since it is smaller than the sum of its proper divisors (137594444).

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

125085820 is a wasteful number, since it uses less digits than its factorization.

125085820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6254300 (or 6254298 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 31.

The square root of 125085820 is about 11184.1772160495. The cubic root of 125085820 is about 500.1144004897.

The spelling of 125085820 in words is "one hundred twenty-five million, eighty-five thousand, eight hundred twenty".