1149147228 has 12 divisors (see below), whose sum is σ = 2681343560. Its totient is φ = 383049072.

The previous prime is 1149147199. The next prime is 1149147281. The reversal of 1149147228 is 8227419411.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47881123 + ... + 47881146.

Almost surely, 2^1149147228 is an apocalyptic number.

It is an amenable number.

1149147228 is an abundant number, since it is smaller than the sum of its proper divisors (1532196332).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1149147228 is a wasteful number, since it uses less digits than its factorization.

1149147228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95762276 (or 95762274 counting only the distinct ones).

The product of its digits is 32256, while the sum is 39.

The square root of 1149147228 is about 33899.0741466489. The cubic root of 1149147228 is about 1047.4305209260.

The spelling of 1149147228 in words is "one billion, one hundred forty-nine million, one hundred forty-seven thousand, two hundred twenty-eight".