122880005 has 4 divisors (see below), whose sum is σ = 147456012. Its totient is φ = 98304000.

The previous prime is 122879971. The next prime is 122880013. The reversal of 122880005 is 500088221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 500088221 = 997 ⋅501593.

It can be written as a sum of positive squares in 2 ways, for example, as 14032516 + 108847489 = 3746^2 + 10433^2 .

It is not a de Polignac number, because 122880005 - 2⁶ = 122879941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12287996 + ... + 12288005.

It is an arithmetic number, because the mean of its divisors is an integer number (36864003).

Almost surely, 2^122880005 is an apocalyptic number.

It is an amenable number.

122880005 is a deficient number, since it is larger than the sum of its proper divisors (24576007).

122880005 is an equidigital number, since it uses as much as digits as its factorization.

122880005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24576006.

The product of its (nonzero) digits is 1280, while the sum is 26.

The square root of 122880005 is about 11085.1253939683. The cubic root of 122880005 is about 497.1572076957.

The spelling of 122880005 in words is "one hundred twenty-two million, eight hundred eighty thousand, five".