122526661 has 2 divisors, whose sum is σ = 122526662. Its totient is φ = 122526660.

The previous prime is 122526659. The next prime is 122526671. The reversal of 122526661 is 166625221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75864100 + 46662561 = 8710^2 + 6831^2 .

It is a cyclic number.

It is not a de Polignac number, because 122526661 - 2¹ = 122526659 is a prime.

Together with 122526659, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122526641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61263330 + 61263331.

It is an arithmetic number, because the mean of its divisors is an integer number (61263331).

Almost surely, 2^122526661 is an apocalyptic number.

It is an amenable number.

122526661 is a deficient number, since it is larger than the sum of its proper divisors (1).

122526661 is an equidigital number, since it uses as much as digits as its factorization.

122526661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 31.

The square root of 122526661 is about 11069.1761662736. The cubic root of 122526661 is about 496.6802215920.

The spelling of 122526661 in words is "one hundred twenty-two million, five hundred twenty-six thousand, six hundred sixty-one".