122767871 has 2 divisors, whose sum is σ = 122767872. Its totient is φ = 122767870.

The previous prime is 122767867. The next prime is 122767889. The reversal of 122767871 is 178767221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122767871 - 2² = 122767867 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122767811) 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, 61383935 + 61383936.

It is an arithmetic number, because the mean of its divisors is an integer number (61383936).

Almost surely, 2^122767871 is an apocalyptic number.

122767871 is a deficient number, since it is larger than the sum of its proper divisors (1).

122767871 is an equidigital number, since it uses as much as digits as its factorization.

122767871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 65856, while the sum is 41.

The square root of 122767871 is about 11080.0663806676. The cubic root of 122767871 is about 497.0059349355.

The spelling of 122767871 in words is "one hundred twenty-two million, seven hundred sixty-seven thousand, eight hundred seventy-one".