122793857 has 2 divisors, whose sum is σ = 122793858. Its totient is φ = 122793856.

The previous prime is 122793799. The next prime is 122793889. The reversal of 122793857 is 758397221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115004176 + 7789681 = 10724^2 + 2791^2 .

It is a cyclic number.

It is not a de Polignac number, because 122793857 - 2¹⁰ = 122792833 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (122793157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61396928 + 61396929.

It is an arithmetic number, because the mean of its divisors is an integer number (61396929).

Almost surely, 2^122793857 is an apocalyptic number.

It is an amenable number.

122793857 is a deficient number, since it is larger than the sum of its proper divisors (1).

122793857 is an equidigital number, since it uses as much as digits as its factorization.

122793857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 211680, while the sum is 44.

The square root of 122793857 is about 11081.2389650255. The cubic root of 122793857 is about 497.0409991723.

The spelling of 122793857 in words is "one hundred twenty-two million, seven hundred ninety-three thousand, eight hundred fifty-seven".