122758873 has 2 divisors, whose sum is σ = 122758874. Its totient is φ = 122758872.

The previous prime is 122758841. The next prime is 122758903. The reversal of 122758873 is 378857221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 122058304 + 700569 = 11048^2 + 837^2 .

It is an emirp because it is prime and its reverse (378857221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122758873 - 2⁵ = 122758841 is a prime.

It is equal to p_6989713 and since 122758873 and 6989713 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (122758813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61379436 + 61379437.

It is an arithmetic number, because the mean of its divisors is an integer number (61379437).

Almost surely, 2^122758873 is an apocalyptic number.

It is an amenable number.

122758873 is a deficient number, since it is larger than the sum of its proper divisors (1).

122758873 is an equidigital number, since it uses as much as digits as its factorization.

122758873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 188160, while the sum is 43.

The square root of 122758873 is about 11079.6603287285. The cubic root of 122758873 is about 496.9937923214.

The spelling of 122758873 in words is "one hundred twenty-two million, seven hundred fifty-eight thousand, eight hundred seventy-three".