1145909112 has 64 divisors (see below), whose sum is σ = 2906389920. Its totient is φ = 376455168.

The previous prime is 1145909069. The next prime is 1145909159. The reversal of 1145909112 is 2119095411.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 643968 + ... + 645744.

Almost surely, 2^1145909112 is an apocalyptic number.

1145909112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1145909112 is an abundant number, since it is smaller than the sum of its proper divisors (1760480808).

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

1145909112 is a wasteful number, since it uses less digits than its factorization.

1145909112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2160 (or 2156 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 33.

The square root of 1145909112 is about 33851.2793258985. The cubic root of 1145909112 is about 1046.4457639390.

The spelling of 1145909112 in words is "one billion, one hundred forty-five million, nine hundred nine thousand, one hundred twelve".