125061905 has 16 divisors (see below), whose sum is σ = 155271168. Its totient is φ = 96600000.

The previous prime is 125061869. The next prime is 125061917. The reversal of 125061905 is 509160521.

It is not a de Polignac number, because 125061905 - 2⁶ = 125061841 is a prime.

It is a Duffinian number.

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, 108080 + ... + 109230.

It is an arithmetic number, because the mean of its divisors is an integer number (9704448).

Almost surely, 2^125061905 is an apocalyptic number.

It is an amenable number.

125061905 is a deficient number, since it is larger than the sum of its proper divisors (30209263).

125061905 is a wasteful number, since it uses less digits than its factorization.

125061905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1888.

The product of its (nonzero) digits is 2700, while the sum is 29.

The square root of 125061905 is about 11183.1080205818. The cubic root of 125061905 is about 500.0825263780.

The spelling of 125061905 in words is "one hundred twenty-five million, sixty-one thousand, nine hundred five".