122767457 has 2 divisors, whose sum is σ = 122767458. Its totient is φ = 122767456.

The previous prime is 122767433. The next prime is 122767499. The reversal of 122767457 is 754767221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117310561 + 5456896 = 10831^2 + 2336^2 .

It is a cyclic number.

It is not a de Polignac number, because 122767457 - 2¹⁶ = 122701921 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (122767427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61383728 + 61383729.

It is an arithmetic number, because the mean of its divisors is an integer number (61383729).

Almost surely, 2^122767457 is an apocalyptic number.

It is an amenable number.

122767457 is a deficient number, since it is larger than the sum of its proper divisors (1).

122767457 is an equidigital number, since it uses as much as digits as its factorization.

122767457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 164640, while the sum is 41.

The square root of 122767457 is about 11080.0476984533. The cubic root of 122767457 is about 497.0053762642.

The spelling of 122767457 in words is "one hundred twenty-two million, seven hundred sixty-seven thousand, four hundred fifty-seven".