122125785 has 32 divisors (see below), whose sum is σ = 199075968. Its totient is φ = 63920640.

The previous prime is 122125781. The next prime is 122125847. The reversal of 122125785 is 587521221.

It is not a de Polignac number, because 122125785 - 2² = 122125781 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (122125781) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 289875 + ... + 290295.

It is an arithmetic number, because the mean of its divisors is an integer number (6221124).

Almost surely, 2^122125785 is an apocalyptic number.

122125785 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

122125785 is a deficient number, since it is larger than the sum of its proper divisors (76950183).

122125785 is a wasteful number, since it uses less digits than its factorization.

122125785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745.

The product of its digits is 11200, while the sum is 33.

The square root of 122125785 is about 11051.0535696828. The cubic root of 122125785 is about 496.1379594235.

The spelling of 122125785 in words is "one hundred twenty-two million, one hundred twenty-five thousand, seven hundred eighty-five".