125045642 has 32 divisors (see below), whose sum is σ = 204083712. Its totient is φ = 57245184.

The previous prime is 125045617. The next prime is 125045699. The reversal of 125045642 is 246540521.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 205703 + ... + 206309.

It is an arithmetic number, because the mean of its divisors is an integer number (6377616).

Almost surely, 2^125045642 is an apocalyptic number.

125045642 is a deficient number, since it is larger than the sum of its proper divisors (79038070).

125045642 is a wasteful number, since it uses less digits than its factorization.

125045642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 125045642 is about 11182.3808734992. The cubic root of 125045642 is about 500.0608485946.

The spelling of 125045642 in words is "one hundred twenty-five million, forty-five thousand, six hundred forty-two".