122680647 has 24 divisors (see below), whose sum is σ = 180960000. Its totient is φ = 80066448.

The previous prime is 122680639. The next prime is 122680667. The reversal of 122680647 is 746086221.

122680647 is a `hidden beast` number, since 1 + 2 + 2 + 6 + 8 + 0 + 647 = 666.

It is not a de Polignac number, because 122680647 - 2³ = 122680639 is a prime.

It is a super-2 number, since 2×122680647² = 30101082296677218, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122680627) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 245604 + ... + 246102.

It is an arithmetic number, because the mean of its divisors is an integer number (7540000).

Almost surely, 2^122680647 is an apocalyptic number.

122680647 is a deficient number, since it is larger than the sum of its proper divisors (58279353).

122680647 is a wasteful number, since it uses less digits than its factorization.

122680647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1027 (or 1024 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 122680647 is about 11076.1296037921. The cubic root of 122680647 is about 496.8882029481. Note that the first 3 decimals are identical.

The spelling of 122680647 in words is "one hundred twenty-two million, six hundred eighty thousand, six hundred forty-seven".