125412020 has 12 divisors (see below), whose sum is σ = 263365284. Its totient is φ = 50164800.

The previous prime is 125412013. The next prime is 125412047. The reversal of 125412020 is 20214521.

It can be written as a sum of positive squares in 2 ways, for example, as 93624976 + 31787044 = 9676^2 + 5638^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 125412020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3135281 + ... + 3135320.

It is an arithmetic number, because the mean of its divisors is an integer number (21947107).

Almost surely, 2^125412020 is an apocalyptic number.

125412020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125412020 is an abundant number, since it is smaller than the sum of its proper divisors (137953264).

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

125412020 is a wasteful number, since it uses less digits than its factorization.

125412020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6270610 (or 6270608 counting only the distinct ones).

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

The square root of 125412020 is about 11198.7508231945. The cubic root of 125412020 is about 500.5487575101.

Adding to 125412020 its reverse (20214521), we get a palindrome (145626541).

The spelling of 125412020 in words is "one hundred twenty-five million, four hundred twelve thousand, twenty".