125845122 has 16 divisors (see below), whose sum is σ = 271051200. Its totient is φ = 38721552.

The previous prime is 125845117. The next prime is 125845129. The reversal of 125845122 is 221548521.

It is a self number, because there is not a number n which added to its sum of digits gives 125845122.

It is not an unprimeable number, because it can be changed into a prime (125845129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 806622 + ... + 806777.

It is an arithmetic number, because the mean of its divisors is an integer number (16940700).

Almost surely, 2^125845122 is an apocalyptic number.

125845122 is an abundant number, since it is smaller than the sum of its proper divisors (145206078).

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

125845122 is a wasteful number, since it uses less digits than its factorization.

125845122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1613417.

The product of its digits is 6400, while the sum is 30.

The square root of 125845122 is about 11218.0712245912. The cubic root of 125845122 is about 501.1242993404.

The spelling of 125845122 in words is "one hundred twenty-five million, eight hundred forty-five thousand, one hundred twenty-two".