1224898555 has 16 divisors (see below), whose sum is σ = 1566835200. Its totient is φ = 916587360.

The previous prime is 1224898487. The next prime is 1224898573. The reversal of 1224898555 is 5558984221.

It is not a de Polignac number, because 1224898555 - 2⁷ = 1224898427 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1224898499 and 1224898508.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74101 + ... + 89110.

It is an arithmetic number, because the mean of its divisors is an integer number (97927200).

Almost surely, 2^1224898555 is an apocalyptic number.

1224898555 is a deficient number, since it is larger than the sum of its proper divisors (341936645).

1224898555 is a wasteful number, since it uses less digits than its factorization.

1224898555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163314.

The product of its digits is 1152000, while the sum is 49.

The square root of 1224898555 is about 34998.5507557099. The cubic root of 1224898555 is about 1069.9579437280.

It can be divided in two parts, 122489 and 8555, that added together give a square (131044 = 362²).

The spelling of 1224898555 in words is "one billion, two hundred twenty-four million, eight hundred ninety-eight thousand, five hundred fifty-five".