1133491 has 4 divisors (see below), whose sum is σ = 1144000. Its totient is φ = 1122984.

The previous prime is 1133479. The next prime is 1133501. The reversal of 1133491 is 1943311.

1133491 = 43² + 44² + ... + 151².

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1133491 - 2⁵ = 1133459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1133191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5091 + ... + 5308.

It is an arithmetic number, because the mean of its divisors is an integer number (286000).

2^1133491 is an apocalyptic number.

1133491 is a deficient number, since it is larger than the sum of its proper divisors (10509).

1133491 is a wasteful number, since it uses less digits than its factorization.

1133491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10508.

The product of its digits is 324, while the sum is 22.

The square root of 1133491 is about 1064.6553432919. The cubic root of 1133491 is about 104.2651947404.

The spelling of 1133491 in words is "one million, one hundred thirty-three thousand, four hundred ninety-one".