122968457 has 2 divisors, whose sum is σ = 122968458. Its totient is φ = 122968456.

The previous prime is 122968453. The next prime is 122968487. The reversal of 122968457 is 754869221.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80209936 + 42758521 = 8956^2 + 6539^2 .

It is a cyclic number.

It is not a de Polignac number, because 122968457 - 2² = 122968453 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (122968451) 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 as a sum of consecutive naturals, namely, 61484228 + 61484229.

It is an arithmetic number, because the mean of its divisors is an integer number (61484229).

Almost surely, 2^122968457 is an apocalyptic number.

It is an amenable number.

122968457 is a deficient number, since it is larger than the sum of its proper divisors (1).

122968457 is an equidigital number, since it uses as much as digits as its factorization.

122968457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 241920, while the sum is 44.

The square root of 122968457 is about 11089.1143469621. The cubic root of 122968457 is about 497.2764676796.

The spelling of 122968457 in words is "one hundred twenty-two million, nine hundred sixty-eight thousand, four hundred fifty-seven".