1132991 has 2 divisors, whose sum is σ = 1132992. Its totient is φ = 1132990.

The previous prime is 1132987. The next prime is 1132993. The reversal of 1132991 is 1992311.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1132991 - 2² = 1132987 is a prime.

Together with 1132993, it forms a pair of twin primes.

It is a Chen prime.

It is a plaindrome in base 12 and base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 1132991.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1132993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 566495 + 566496.

It is an arithmetic number, because the mean of its divisors is an integer number (566496).

2^1132991 is an apocalyptic number.

1132991 is a deficient number, since it is larger than the sum of its proper divisors (1).

1132991 is an equidigital number, since it uses as much as digits as its factorization.

1132991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 486, while the sum is 26.

The square root of 1132991 is about 1064.4204996147. The cubic root of 1132991 is about 104.2498615015.

The spelling of 1132991 in words is "one million, one hundred thirty-two thousand, nine hundred ninety-one".