122887277 has 2 divisors, whose sum is σ = 122887278. Its totient is φ = 122887276.

The previous prime is 122887267. The next prime is 122887279. The reversal of 122887277 is 772788221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120868036 + 2019241 = 10994^2 + 1421^2 .

It is a cyclic number.

It is not a de Polignac number, because 122887277 - 2⁸ = 122887021 is a prime.

Together with 122887279, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122887279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61443638 + 61443639.

It is an arithmetic number, because the mean of its divisors is an integer number (61443639).

Almost surely, 2^122887277 is an apocalyptic number.

It is an amenable number.

122887277 is a deficient number, since it is larger than the sum of its proper divisors (1).

122887277 is an equidigital number, since it uses as much as digits as its factorization.

122887277 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 175616, while the sum is 44.

The square root of 122887277 is about 11085.4533962306. The cubic root of 122887277 is about 497.1670147046.

The spelling of 122887277 in words is "one hundred twenty-two million, eight hundred eighty-seven thousand, two hundred seventy-seven".