122427657 has 12 divisors (see below), whose sum is σ = 192916464. Its totient is φ = 74198520.

The previous prime is 122427653. The next prime is 122427661. The reversal of 122427657 is 756724221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (122427653) and next prime (122427661).

It is not a de Polignac number, because 122427657 - 2² = 122427653 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122427653) 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 in 11 ways as a sum of consecutive naturals, for example, 618223 + ... + 618420.

It is an arithmetic number, because the mean of its divisors is an integer number (16076372).

Almost surely, 2^122427657 is an apocalyptic number.

It is an amenable number.

122427657 is a deficient number, since it is larger than the sum of its proper divisors (70488807).

122427657 is a wasteful number, since it uses less digits than its factorization.

122427657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1236660 (or 1236657 counting only the distinct ones).

The product of its digits is 47040, while the sum is 36.

The square root of 122427657 is about 11064.7032043340. The cubic root of 122427657 is about 496.5464096838.

The spelling of 122427657 in words is "one hundred twenty-two million, four hundred twenty-seven thousand, six hundred fifty-seven".