125129442 has 16 divisors (see below), whose sum is σ = 254501280. Its totient is φ = 41002752.

The previous prime is 125129419. The next prime is 125129467. The reversal of 125129442 is 244921521.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 176383 + ... + 177090.

It is an arithmetic number, because the mean of its divisors is an integer number (15906330).

Almost surely, 2^125129442 is an apocalyptic number.

125129442 is an abundant number, since it is smaller than the sum of its proper divisors (129371838).

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

125129442 is a wasteful number, since it uses less digits than its factorization.

125129442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353537.

The product of its digits is 5760, while the sum is 30.

The square root of 125129442 is about 11186.1272118638. The cubic root of 125129442 is about 500.1725297934.

The spelling of 125129442 in words is "one hundred twenty-five million, one hundred twenty-nine thousand, four hundred forty-two".