122809077 has 6 divisors (see below), whose sum is σ = 177390902. Its totient is φ = 81872712.

The previous prime is 122809061. The next prime is 122809087. The reversal of 122809077 is 770908221.

It can be written as a sum of positive squares in only one way, i.e., 86881041 + 35928036 = 9321^2 + 5994^2 .

It is not a de Polignac number, because 122809077 - 2⁴ = 122809061 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 (122809007) 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 in 5 ways as a sum of consecutive naturals, for example, 6822718 + ... + 6822735.

Almost surely, 2^122809077 is an apocalyptic number.

It is an amenable number.

122809077 is a deficient number, since it is larger than the sum of its proper divisors (54581825).

122809077 is a wasteful number, since it uses less digits than its factorization.

122809077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13645459 (or 13645456 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The square root of 122809077 is about 11081.9256900595. The cubic root of 122809077 is about 497.0615339984.

The spelling of 122809077 in words is "one hundred twenty-two million, eight hundred nine thousand, seventy-seven".