122932181 has 2 divisors, whose sum is σ = 122932182. Its totient is φ = 122932180.

The previous prime is 122932157. The next prime is 122932211. The reversal of 122932181 is 181239221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87422500 + 35509681 = 9350^2 + 5959^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122932181 is a prime.

It is a super-2 number, since 2×122932181² = 30224642250833522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122932111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61466090 + 61466091.

It is an arithmetic number, because the mean of its divisors is an integer number (61466091).

Almost surely, 2^122932181 is an apocalyptic number.

It is an amenable number.

122932181 is a deficient number, since it is larger than the sum of its proper divisors (1).

122932181 is an equidigital number, since it uses as much as digits as its factorization.

122932181 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728, while the sum is 29.

The square root of 122932181 is about 11087.4785681867. The cubic root of 122932181 is about 497.2275636063.

The spelling of 122932181 in words is "one hundred twenty-two million, nine hundred thirty-two thousand, one hundred eighty-one".