122354681 has 2 divisors, whose sum is σ = 122354682. Its totient is φ = 122354680.

The previous prime is 122354599. The next prime is 122354689. The reversal of 122354681 is 186453221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 94264681 + 28090000 = 9709^2 + 5300^2 .

It is a cyclic number.

It is not a de Polignac number, because 122354681 - 2¹⁰ = 122353657 is a prime.

It is a super-2 number, since 2×122354681² = 29941335925223522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (122354689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61177340 + 61177341.

It is an arithmetic number, because the mean of its divisors is an integer number (61177341).

Almost surely, 2^122354681 is an apocalyptic number.

It is an amenable number.

122354681 is a deficient number, since it is larger than the sum of its proper divisors (1).

122354681 is an equidigital number, since it uses as much as digits as its factorization.

122354681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11520, while the sum is 32.

The square root of 122354681 is about 11061.4050192550. The cubic root of 122354681 is about 496.4477305295.

The spelling of 122354681 in words is "one hundred twenty-two million, three hundred fifty-four thousand, six hundred eighty-one".