1228555179 has 12 divisors (see below), whose sum is σ = 1798889976. Its totient is φ = 807816672.

The previous prime is 1228555151. The next prime is 1228555183. The reversal of 1228555179 is 9715558221.

1228555179 is a `hidden beast` number, since 1 + 2 + 28 + 5 + 551 + 79 = 666.

It is not a de Polignac number, because 1228555179 - 2¹³ = 1228546987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1228555379) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 934317 + ... + 935630.

It is an arithmetic number, because the mean of its divisors is an integer number (149907498).

Almost surely, 2^1228555179 is an apocalyptic number.

1228555179 is a deficient number, since it is larger than the sum of its proper divisors (570334797).

1228555179 is a wasteful number, since it uses less digits than its factorization.

1228555179 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1870026 (or 1870023 counting only the distinct ones).

The product of its digits is 252000, while the sum is 45.

The square root of 1228555179 is about 35050.7514755390. The cubic root of 1228555179 is about 1071.0215820543.

The spelling of 1228555179 in words is "one billion, two hundred twenty-eight million, five hundred fifty-five thousand, one hundred seventy-nine".