1145283812 has 24 divisors (see below), whose sum is σ = 2125154304. Its totient is φ = 538192512.

The previous prime is 1145283703. The next prime is 1145283817. The reversal of 1145283812 is 2183825411.

It is not an unprimeable number, because it can be changed into a prime (1145283817) 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, 37853 + ... + 61019.

It is an arithmetic number, because the mean of its divisors is an integer number (88548096).

Almost surely, 2^1145283812 is an apocalyptic number.

It is an amenable number.

1145283812 is a deficient number, since it is larger than the sum of its proper divisors (979870492).

1145283812 is a wasteful number, since it uses less digits than its factorization.

1145283812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23915 (or 23913 counting only the distinct ones).

The product of its digits is 15360, while the sum is 35.

The square root of 1145283812 is about 33842.0420778652. The cubic root of 1145283812 is about 1046.2553877023.

The spelling of 1145283812 in words is "one billion, one hundred forty-five million, two hundred eighty-three thousand, eight hundred twelve".