1145864 has 16 divisors (see below), whose sum is σ = 2199120. Its totient is φ = 559440.

The previous prime is 1145849. The next prime is 1145873. The reversal of 1145864 is 4685411.

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, 1322 + ... + 2009.

It is an arithmetic number, because the mean of its divisors is an integer number (137445).

2^1145864 is an apocalyptic number.

It is an amenable number.

1145864 is a deficient number, since it is larger than the sum of its proper divisors (1053256).

1145864 is a wasteful number, since it uses less digits than its factorization.

1145864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3380 (or 3376 counting only the distinct ones).

The product of its digits is 3840, while the sum is 29.

The square root of 1145864 is about 1070.4503725068. The cubic root of 1145864 is about 104.6432031645.

The spelling of 1145864 in words is "one million, one hundred forty-five thousand, eight hundred sixty-four".