122427661 has 2 divisors, whose sum is σ = 122427662. Its totient is φ = 122427660.

The previous prime is 122427653. The next prime is 122427667. The reversal of 122427661 is 166724221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 117614025 + 4813636 = 10845^2 + 2194^2 .

It is a cyclic number.

It is not a de Polignac number, because 122427661 - 2³ = 122427653 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 (122427667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61213830 + 61213831.

It is an arithmetic number, because the mean of its divisors is an integer number (61213831).

Almost surely, 2^122427661 is an apocalyptic number.

It is an amenable number.

122427661 is a deficient number, since it is larger than the sum of its proper divisors (1).

122427661 is an equidigital number, since it uses as much as digits as its factorization.

122427661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064, while the sum is 31.

The square root of 122427661 is about 11064.7033850890. The cubic root of 122427661 is about 496.5464150916.

The spelling of 122427661 in words is "one hundred twenty-two million, four hundred twenty-seven thousand, six hundred sixty-one".