1228039177 has 8 divisors (see below), whose sum is σ = 1281899520. Its totient is φ = 1175069280.

The previous prime is 1228039151. The next prime is 1228039187. The reversal of 1228039177 is 7719308221.

It is a happy number.

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 1228039177 - 2⁷ = 1228039049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1228039187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 219793 + ... + 225310.

It is an arithmetic number, because the mean of its divisors is an integer number (160237440).

Almost surely, 2^1228039177 is an apocalyptic number.

It is an amenable number.

1228039177 is a deficient number, since it is larger than the sum of its proper divisors (53860343).

1228039177 is an equidigital number, since it uses as much as digits as its factorization.

1228039177 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445223.

The product of its (nonzero) digits is 42336, while the sum is 40.

The square root of 1228039177 is about 35043.3899187850. The cubic root of 1228039177 is about 1070.8716154708.

The spelling of 1228039177 in words is "one billion, two hundred twenty-eight million, thirty-nine thousand, one hundred seventy-seven".