122427691 has 2 divisors, whose sum is σ = 122427692. Its totient is φ = 122427690.

The previous prime is 122427673. The next prime is 122427707. The reversal of 122427691 is 196724221.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122427691 is a prime.

It is not a weakly prime, because it can be changed into another prime (122427611) 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, 61213845 + 61213846.

It is an arithmetic number, because the mean of its divisors is an integer number (61213846).

Almost surely, 2^122427691 is an apocalyptic number.

122427691 is a deficient number, since it is larger than the sum of its proper divisors (1).

122427691 is an equidigital number, since it uses as much as digits as its factorization.

122427691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 34.

The square root of 122427691 is about 11064.7047407511. The cubic root of 122427691 is about 496.5464556499.

The spelling of 122427691 in words is "one hundred twenty-two million, four hundred twenty-seven thousand, six hundred ninety-one".