122968281 has 16 divisors (see below), whose sum is σ = 173437056. Its totient is φ = 77337216.

The previous prime is 122968277. The next prime is 122968303. The reversal of 122968281 is 182869221.

It is not a de Polignac number, because 122968281 - 2² = 122968277 is a prime.

It is a super-2 number, since 2×122968281² = 30242396264189922, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (122968201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7170 + ... + 17243.

It is an arithmetic number, because the mean of its divisors is an integer number (10839816).

Almost surely, 2^122968281 is an apocalyptic number.

It is an amenable number.

122968281 is a deficient number, since it is larger than the sum of its proper divisors (50468775).

122968281 is a wasteful number, since it uses less digits than its factorization.

122968281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24512.

The product of its digits is 27648, while the sum is 39.

The square root of 122968281 is about 11089.1064112488. The cubic root of 122968281 is about 497.2762304353.

The spelling of 122968281 in words is "one hundred twenty-two million, nine hundred sixty-eight thousand, two hundred eighty-one".