122249657 has 2 divisors, whose sum is σ = 122249658. Its totient is φ = 122249656.

The previous prime is 122249651. The next prime is 122249683. The reversal of 122249657 is 756942221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 95043001 + 27206656 = 9749^2 + 5216^2 .

It is a cyclic number.

It is not a de Polignac number, because 122249657 - 2¹⁴ = 122233273 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122249657.

It is not a weakly prime, because it can be changed into another prime (122249651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61124828 + 61124829.

It is an arithmetic number, because the mean of its divisors is an integer number (61124829).

Almost surely, 2^122249657 is an apocalyptic number.

It is an amenable number.

122249657 is a deficient number, since it is larger than the sum of its proper divisors (1).

122249657 is an equidigital number, since it uses as much as digits as its factorization.

122249657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60480, while the sum is 38.

The square root of 122249657 is about 11056.6566827409. The cubic root of 122249657 is about 496.3056467365.

The spelling of 122249657 in words is "one hundred twenty-two million, two hundred forty-nine thousand, six hundred fifty-seven".