1155894 has 16 divisors (see below), whose sum is σ = 2322432. Its totient is φ = 383528.

The previous prime is 1155863. The next prime is 1155899. The reversal of 1155894 is 4985511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155899) 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, 2047 + ... + 2549.

It is an arithmetic number, because the mean of its divisors is an integer number (145152).

2^1155894 is an apocalyptic number.

1155894 is an abundant number, since it is smaller than the sum of its proper divisors (1166538).

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

1155894 is a wasteful number, since it uses less digits than its factorization.

1155894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 891.

The product of its digits is 7200, while the sum is 33.

The square root of 1155894 is about 1075.1251089989. The cubic root of 1155894 is about 104.9476382915.

The spelling of 1155894 in words is "one million, one hundred fifty-five thousand, eight hundred ninety-four".