1151146771 has 4 divisors (see below), whose sum is σ = 1151283112. Its totient is φ = 1151010432.

The previous prime is 1151146753. The next prime is 1151146811. The reversal of 1151146771 is 1776411511.

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 1151146771 - 2¹¹ = 1151144723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1151146741) 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, 54606 + ... + 72691.

It is an arithmetic number, because the mean of its divisors is an integer number (287820778).

Almost surely, 2^1151146771 is an apocalyptic number.

1151146771 is a deficient number, since it is larger than the sum of its proper divisors (136341).

1151146771 is an equidigital number, since it uses as much as digits as its factorization.

1151146771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136340.

The product of its digits is 5880, while the sum is 34.

The square root of 1151146771 is about 33928.5539184917. The cubic root of 1151146771 is about 1048.0376867530.

The spelling of 1151146771 in words is "one billion, one hundred fifty-one million, one hundred forty-six thousand, seven hundred seventy-one".