122712845 has 8 divisors (see below), whose sum is σ = 149453664. Its totient is φ = 96704784.

The previous prime is 122712829. The next prime is 122712847. The reversal of 122712845 is 548217221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 122712845 - 2⁴ = 122712829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122712847) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 182819 + ... + 183488.

It is an arithmetic number, because the mean of its divisors is an integer number (18681708).

Almost surely, 2^122712845 is an apocalyptic number.

It is an amenable number.

122712845 is a deficient number, since it is larger than the sum of its proper divisors (26740819).

122712845 is an equidigital number, since it uses as much as digits as its factorization.

122712845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366379.

The product of its digits is 8960, while the sum is 32.

The square root of 122712845 is about 11077.5829944984. The cubic root of 122712845 is about 496.9316692087.

The spelling of 122712845 in words is "one hundred twenty-two million, seven hundred twelve thousand, eight hundred forty-five".