122562661 has 8 divisors (see below), whose sum is σ = 132411384. Its totient is φ = 112774080.

The previous prime is 122562641. The next prime is 122562667. The reversal of 122562661 is 166265221.

It can be written as a sum of positive squares in 4 ways, for example, as 2660161 + 119902500 = 1631^2 + 10950^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122562661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122562667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10750 + ... + 18991.

It is an arithmetic number, because the mean of its divisors is an integer number (16551423).

Almost surely, 2^122562661 is an apocalyptic number.

It is an amenable number.

122562661 is a deficient number, since it is larger than the sum of its proper divisors (9848723).

122562661 is a wasteful number, since it uses less digits than its factorization.

122562661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30071.

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

The square root of 122562661 is about 11070.8021841238. The cubic root of 122562661 is about 496.7288606309.

The spelling of 122562661 in words is "one hundred twenty-two million, five hundred sixty-two thousand, six hundred sixty-one".