122086791 has 16 divisors (see below), whose sum is σ = 185759200. Its totient is φ = 79190784.

The previous prime is 122086787. The next prime is 122086793. The reversal of 122086791 is 197680221.

It is not a de Polignac number, because 122086791 - 2² = 122086787 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122086793) 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, 60106 + ... + 62103.

It is an arithmetic number, because the mean of its divisors is an integer number (11609950).

Almost surely, 2^122086791 is an apocalyptic number.

122086791 is a deficient number, since it is larger than the sum of its proper divisors (63672409).

122086791 is a wasteful number, since it uses less digits than its factorization.

122086791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122255 (or 122249 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 122086791 is about 11049.2891626566. The cubic root of 122086791 is about 496.0851492190.

The spelling of 122086791 in words is "one hundred twenty-two million, eighty-six thousand, seven hundred ninety-one".