1145188 has 24 divisors (see below), whose sum is σ = 2316384. Its totient is φ = 489600.

The previous prime is 1145173. The next prime is 1145189. The reversal of 1145188 is 8815411.

It is a super-2 number, since 2×1145188² = 2622911110688, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1145189) 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, 18 + ... + 1513.

It is an arithmetic number, because the mean of its divisors is an integer number (96516).

2^1145188 is an apocalyptic number.

It is an amenable number.

1145188 is an abundant number, since it is smaller than the sum of its proper divisors (1171196).

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

1145188 is a wasteful number, since it uses less digits than its factorization.

1145188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1563 (or 1561 counting only the distinct ones).

The product of its digits is 1280, while the sum is 28.

The square root of 1145188 is about 1070.1345709769. The cubic root of 1145188 is about 104.6226211058.

The spelling of 1145188 in words is "one million, one hundred forty-five thousand, one hundred eighty-eight".