125318020 has 12 divisors (see below), whose sum is σ = 263167884. Its totient is φ = 50127200.

The previous prime is 125317993. The next prime is 125318029. The reversal of 125318020 is 20813521.

It can be written as a sum of positive squares in 2 ways, for example, as 55562116 + 69755904 = 7454^2 + 8352^2 .

It is a super-2 number, since 2×125318020² = 31409212273440800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 125317982 and 125318000.

It is not an unprimeable number, because it can be changed into a prime (125318029) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3132931 + ... + 3132970.

It is an arithmetic number, because the mean of its divisors is an integer number (21930657).

Almost surely, 2^125318020 is an apocalyptic number.

125318020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125318020 is an abundant number, since it is smaller than the sum of its proper divisors (137849864).

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

125318020 is a wasteful number, since it uses less digits than its factorization.

125318020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6265910 (or 6265908 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 125318020 is about 11194.5531398087. The cubic root of 125318020 is about 500.4236675768.

The spelling of 125318020 in words is "one hundred twenty-five million, three hundred eighteen thousand, twenty".