12722455 has 8 divisors (see below), whose sum is σ = 15300000. Its totient is φ = 10155936.

The previous prime is 12722447. The next prime is 12722459. The reversal of 12722455 is 55422721.

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 12722455 - 2³ = 12722447 is a prime.

It is a super-2 number, since 2×12722455² = 323721722454050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12722459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46 + ... + 5044.

It is an arithmetic number, because the mean of its divisors is an integer number (1912500).

Almost surely, 2^12722455 is an apocalyptic number.

12722455 is a deficient number, since it is larger than the sum of its proper divisors (2577545).

12722455 is an equidigital number, since it uses as much as digits as its factorization.

12722455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5513.

The product of its digits is 5600, while the sum is 28.

The square root of 12722455 is about 3566.8550573299. The cubic root of 12722455 is about 233.4480807491.

The spelling of 12722455 in words is "twelve million, seven hundred twenty-two thousand, four hundred fifty-five".