122766647 has 2 divisors, whose sum is σ = 122766648. Its totient is φ = 122766646.

The previous prime is 122766583. The next prime is 122766653. The reversal of 122766647 is 746667221.

It is a strong prime.

It is an emirp because it is prime and its reverse (746667221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122766647 - 2⁶ = 122766583 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122766697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61383323 + 61383324.

It is an arithmetic number, because the mean of its divisors is an integer number (61383324).

Almost surely, 2^122766647 is an apocalyptic number.

122766647 is a deficient number, since it is larger than the sum of its proper divisors (1).

122766647 is an equidigital number, since it uses as much as digits as its factorization.

122766647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 169344, while the sum is 41.

The square root of 122766647 is about 11080.0111462038. The cubic root of 122766647 is about 497.0042832078.

The spelling of 122766647 in words is "one hundred twenty-two million, seven hundred sixty-six thousand, six hundred forty-seven".