1132891 has 4 divisors (see below), whose sum is σ = 1139400. Its totient is φ = 1126384.

The previous prime is 1132883. The next prime is 1132909. The reversal of 1132891 is 1982311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1982311 = 863 ⋅2297.

It is a cyclic number.

It is not a de Polignac number, because 1132891 - 2³ = 1132883 is a prime.

It is a Duffinian number.

1132891 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1132811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2986 + ... + 3343.

It is an arithmetic number, because the mean of its divisors is an integer number (284850).

2^1132891 is an apocalyptic number.

1132891 is a deficient number, since it is larger than the sum of its proper divisors (6509).

1132891 is an equidigital number, since it uses as much as digits as its factorization.

1132891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6508.

The product of its digits is 432, while the sum is 25.

The square root of 1132891 is about 1064.3735246613. The cubic root of 1132891 is about 104.2467943124.

The spelling of 1132891 in words is "one million, one hundred thirty-two thousand, eight hundred ninety-one".