122733281 has 16 divisors (see below), whose sum is σ = 137509056. Its totient is φ = 108600000.

The previous prime is 122733277. The next prime is 122733283. The reversal of 122733281 is 182337221.

It is a cyclic number.

It is not a de Polignac number, because 122733281 - 2² = 122733277 is a prime.

It is a super-2 number, since 2×122733281² = 30126916530049922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (122733283) 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, 66866 + ... + 68676.

It is an arithmetic number, because the mean of its divisors is an integer number (8594316).

Almost surely, 2^122733281 is an apocalyptic number.

122733281 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

122733281 is a deficient number, since it is larger than the sum of its proper divisors (14775775).

122733281 is a wasteful number, since it uses less digits than its factorization.

122733281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1984.

The product of its digits is 4032, while the sum is 29.

The square root of 122733281 is about 11078.5053594788. The cubic root of 122733281 is about 496.9592532048.

The spelling of 122733281 in words is "one hundred twenty-two million, seven hundred thirty-three thousand, two hundred eighty-one".