12722755 has 8 divisors (see below), whose sum is σ = 15313392. Its totient is φ = 10147488.

The previous prime is 12722747. The next prime is 12722767. The reversal of 12722755 is 55722721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12722755 - 2³ = 12722747 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1932 + ... + 5401.

It is an arithmetic number, because the mean of its divisors is an integer number (1914174).

Almost surely, 2^12722755 is an apocalyptic number.

12722755 is a deficient number, since it is larger than the sum of its proper divisors (2590637).

12722755 is an equidigital number, since it uses as much as digits as its factorization.

12722755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7685.

The product of its digits is 9800, while the sum is 31.

The square root of 12722755 is about 3566.8971109355. The cubic root of 12722755 is about 233.4499156642.

The spelling of 12722755 in words is "twelve million, seven hundred twenty-two thousand, seven hundred fifty-five".