1147889612 has 24 divisors (see below), whose sum is σ = 2097367776. Its totient is φ = 548670848.

The previous prime is 1147889581. The next prime is 1147889711. The reversal of 1147889612 is 2169887411.

It is a super-2 number, since 2×1147889612² = 2635301122675021088, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 253238 + ... + 257730.

It is an arithmetic number, because the mean of its divisors is an integer number (87390324).

Almost surely, 2^1147889612 is an apocalyptic number.

It is an amenable number.

1147889612 is a deficient number, since it is larger than the sum of its proper divisors (949478164).

1147889612 is a wasteful number, since it uses less digits than its factorization.

1147889612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7297 (or 7295 counting only the distinct ones).

The product of its digits is 193536, while the sum is 47.

The square root of 1147889612 is about 33880.5196536299. The cubic root of 1147889612 is about 1047.0482820574.

The spelling of 1147889612 in words is "one billion, one hundred forty-seven million, eight hundred eighty-nine thousand, six hundred twelve".