125420980 has 12 divisors (see below), whose sum is σ = 263384100. Its totient is φ = 50168384.

The previous prime is 125420963. The next prime is 125420987. The reversal of 125420980 is 89024521.

It can be written as a sum of positive squares in 2 ways, for example, as 24860196 + 100560784 = 4986^2 + 10028^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125420987) 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, 3135505 + ... + 3135544.

It is an arithmetic number, because the mean of its divisors is an integer number (21948675).

Almost surely, 2^125420980 is an apocalyptic number.

125420980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125420980 is an abundant number, since it is smaller than the sum of its proper divisors (137963120).

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

125420980 is a wasteful number, since it uses less digits than its factorization.

125420980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6271058 (or 6271056 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 125420980 is about 11199.1508606680. The cubic root of 125420980 is about 500.5606777127.

The spelling of 125420980 in words is "one hundred twenty-five million, four hundred twenty thousand, nine hundred eighty".