1134771491 has 4 divisors (see below), whose sum is σ = 1296881712. Its totient is φ = 972661272.

The previous prime is 1134771457. The next prime is 1134771503. The reversal of 1134771491 is 1941774311.

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 1134771491 - 2⁶ = 1134771427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1134771691) 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, 81055100 + ... + 81055113.

It is an arithmetic number, because the mean of its divisors is an integer number (324220428).

Almost surely, 2^1134771491 is an apocalyptic number.

1134771491 is a deficient number, since it is larger than the sum of its proper divisors (162110221).

1134771491 is an equidigital number, since it uses as much as digits as its factorization.

1134771491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162110220.

The product of its digits is 21168, while the sum is 38.

The square root of 1134771491 is about 33686.3695134991. The cubic root of 1134771491 is about 1043.0444233912.

The spelling of 1134771491 in words is "one billion, one hundred thirty-four million, seven hundred seventy-one thousand, four hundred ninety-one".