122517601 has 2 divisors, whose sum is σ = 122517602. Its totient is φ = 122517600.

The previous prime is 122517599. The next prime is 122517617. The reversal of 122517601 is 106715221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120560400 + 1957201 = 10980^2 + 1399^2 .

It is a cyclic number.

It is not a de Polignac number, because 122517601 - 2¹ = 122517599 is a prime.

Together with 122517599, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (122517641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61258800 + 61258801.

It is an arithmetic number, because the mean of its divisors is an integer number (61258801).

Almost surely, 2^122517601 is an apocalyptic number.

It is an amenable number.

122517601 is a deficient number, since it is larger than the sum of its proper divisors (1).

122517601 is an equidigital number, since it uses as much as digits as its factorization.

122517601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 122517601 is about 11068.7669141599. The cubic root of 122517601 is about 496.6679792667.

The spelling of 122517601 in words is "one hundred twenty-two million, five hundred seventeen thousand, six hundred one".