1228869271 has 8 divisors (see below), whose sum is σ = 1442379680. Its totient is φ = 1024848288.

The previous prime is 1228869269. The next prime is 1228869281. The reversal of 1228869271 is 1729688221.

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 1228869271 - 2¹ = 1228869269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1228869241) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2372076 + ... + 2372593.

It is an arithmetic number, because the mean of its divisors is an integer number (180297460).

Almost surely, 2^1228869271 is an apocalyptic number.

1228869271 is a deficient number, since it is larger than the sum of its proper divisors (213510409).

1228869271 is an equidigital number, since it uses as much as digits as its factorization.

1228869271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4744713.

The product of its digits is 193536, while the sum is 46.

The square root of 1228869271 is about 35055.2317208145. The cubic root of 1228869271 is about 1071.1128466152.

The spelling of 1228869271 in words is "one billion, two hundred twenty-eight million, eight hundred sixty-nine thousand, two hundred seventy-one".