122071657 has 2 divisors, whose sum is σ = 122071658. Its totient is φ = 122071656.

The previous prime is 122071633. The next prime is 122071681. The reversal of 122071657 is 756170221.

It is a balanced prime because it is at equal distance from previous prime (122071633) and next prime (122071681).

It can be written as a sum of positive squares in only one way, i.e., 105596176 + 16475481 = 10276^2 + 4059^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122071657 is a prime.

It is not a weakly prime, because it can be changed into another prime (122071627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61035828 + 61035829.

It is an arithmetic number, because the mean of its divisors is an integer number (61035829).

Almost surely, 2^122071657 is an apocalyptic number.

It is an amenable number.

122071657 is a deficient number, since it is larger than the sum of its proper divisors (1).

122071657 is an equidigital number, since it uses as much as digits as its factorization.

122071657 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5880, while the sum is 31.

The square root of 122071657 is about 11048.6043009966. The cubic root of 122071657 is about 496.0646499692.

The spelling of 122071657 in words is "one hundred twenty-two million, seventy-one thousand, six hundred fifty-seven".