122784269 has 2 divisors, whose sum is σ = 122784270. Its totient is φ = 122784268.

The previous prime is 122784253. The next prime is 122784283. The reversal of 122784269 is 962487221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 96138025 + 26646244 = 9805^2 + 5162^2 .

It is a cyclic number.

It is not a de Polignac number, because 122784269 - 2⁴ = 122784253 is a prime.

It is a super-2 number, since 2×122784269² = 30151953427728722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122784239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61392134 + 61392135.

It is an arithmetic number, because the mean of its divisors is an integer number (61392135).

Almost surely, 2^122784269 is an apocalyptic number.

It is an amenable number.

122784269 is a deficient number, since it is larger than the sum of its proper divisors (1).

122784269 is an equidigital number, since it uses as much as digits as its factorization.

122784269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96768, while the sum is 41.

The square root of 122784269 is about 11080.8063334759. The cubic root of 122784269 is about 497.0280621703.

The spelling of 122784269 in words is "one hundred twenty-two million, seven hundred eighty-four thousand, two hundred sixty-nine".