1143964 has 12 divisors (see below), whose sum is σ = 2119824. Its totient is φ = 538304.

The previous prime is 1143959. The next prime is 1143977. The reversal of 1143964 is 4693411.

It is a congruent number.

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, 8344 + ... + 8479.

It is an arithmetic number, because the mean of its divisors is an integer number (176652).

2^1143964 is an apocalyptic number.

It is an amenable number.

1143964 is a deficient number, since it is larger than the sum of its proper divisors (975860).

1143964 is a wasteful number, since it uses less digits than its factorization.

1143964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16844 (or 16842 counting only the distinct ones).

The product of its digits is 2592, while the sum is 28.

The square root of 1143964 is about 1069.5625273915. The cubic root of 1143964 is about 104.5853335632.

The spelling of 1143964 in words is "one million, one hundred forty-three thousand, nine hundred sixty-four".