122748577 has 6 divisors (see below), whose sum is σ = 142789218. Its totient is φ = 105213024.

The previous prime is 122748557. The next prime is 122748601. The reversal of 122748577 is 775847221.

It can be written as a sum of positive squares in only one way, i.e., 100620961 + 22127616 = 10031^2 + 4704^2 .

It is a de Polignac number, because none of the positive numbers 2^k-122748577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122748557) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1252488 + ... + 1252585.

It is an arithmetic number, because the mean of its divisors is an integer number (23798203).

Almost surely, 2^122748577 is an apocalyptic number.

It is an amenable number.

122748577 is a deficient number, since it is larger than the sum of its proper divisors (20040641).

122748577 is an equidigital number, since it uses as much as digits as its factorization.

122748577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2505087 (or 2505080 counting only the distinct ones).

The product of its digits is 219520, while the sum is 43.

The square root of 122748577 is about 11079.1956838030. The cubic root of 122748577 is about 496.9798973553.

The spelling of 122748577 in words is "one hundred twenty-two million, seven hundred forty-eight thousand, five hundred seventy-seven".