1145384972 has 12 divisors (see below), whose sum is σ = 2004681336. Its totient is φ = 572618880.

The previous prime is 1145384963. The next prime is 1145385049. The reversal of 1145384972 is 2794835411.

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, 31868 + ... + 57500.

It is an arithmetic number, because the mean of its divisors is an integer number (167056778).

Almost surely, 2^1145384972 is an apocalyptic number.

It is an amenable number.

1145384972 is a deficient number, since it is larger than the sum of its proper divisors (859296364).

1145384972 is a wasteful number, since it uses less digits than its factorization.

1145384972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36808 (or 36806 counting only the distinct ones).

The product of its digits is 241920, while the sum is 44.

The square root of 1145384972 is about 33843.5366355232. The cubic root of 1145384972 is about 1046.2861911526.

The spelling of 1145384972 in words is "one billion, one hundred forty-five million, three hundred eighty-four thousand, nine hundred seventy-two".