1115864 has 8 divisors (see below), whose sum is σ = 2092260. Its totient is φ = 557928.

The previous prime is 1115857. The next prime is 1115879. The reversal of 1115864 is 4685111.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69734 + ... + 69749.

2^1115864 is an apocalyptic number.

It is an amenable number.

1115864 is a deficient number, since it is larger than the sum of its proper divisors (976396).

1115864 is a wasteful number, since it uses less digits than its factorization.

1115864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139489 (or 139485 counting only the distinct ones).

The product of its digits is 960, while the sum is 26.

The square root of 1115864 is about 1056.3446407305. The cubic root of 1115864 is about 103.7218900960.

The spelling of 1115864 in words is "one million, one hundred fifteen thousand, eight hundred sixty-four".