122877 has 20 divisors (see below), whose sum is σ = 193116. Its totient is φ = 77760.

The previous prime is 122869. The next prime is 122887. The reversal of 122877 is 778221.

It can be written as a sum of positive squares in 2 ways, for example, as 54756 + 68121 = 234^2 + 261^2 .

It is not a de Polignac number, because 122877 - 2³ = 122869 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 122877.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 122877.

It is not an unprimeable number, because it can be changed into a prime (122827) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2977 + ... + 3017.

2¹²²⁸⁷⁷ is an apocalyptic number.

122877 is the 222-nd heptagonal number.

It is an amenable number.

122877 is a deficient number, since it is larger than the sum of its proper divisors (70239).

122877 is an equidigital number, since it uses as much as digits as its factorization.

122877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90 (or 81 counting only the distinct ones).

The product of its digits is 1568, while the sum is 27.

The square root of 122877 is about 350.5381576947. The cubic root of 122877 is about 49.7153155044.

It can be divided in two parts, 122 and 877, that added together give a palindrome (999).

The spelling of 122877 in words is "one hundred twenty-two thousand, eight hundred seventy-seven".