1228609271 has 8 divisors (see below), whose sum is σ = 1253852784. Its totient is φ = 1203442240.

The previous prime is 1228609253. The next prime is 1228609289. The reversal of 1228609271 is 1729068221.

It is an interprime number because it is at equal distance from previous prime (1228609253) and next prime (1228609289).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1228609271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1228600271) 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, 13916 + ... + 51486.

It is an arithmetic number, because the mean of its divisors is an integer number (156731598).

Almost surely, 2^1228609271 is an apocalyptic number.

1228609271 is a deficient number, since it is larger than the sum of its proper divisors (25243513).

1228609271 is an equidigital number, since it uses as much as digits as its factorization.

1228609271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38241.

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 1228609271 is about 35051.5230910156. The cubic root of 1228609271 is about 1071.0373004771.

The spelling of 1228609271 in words is "one billion, two hundred twenty-eight million, six hundred nine thousand, two hundred seventy-one".