1146828191 has 4 divisors (see below), whose sum is σ = 1148215752. Its totient is φ = 1145440632.

The previous prime is 1146828169. The next prime is 1146828203. The reversal of 1146828191 is 1918286411.

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 1146828191 - 2¹⁴ = 1146811807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1146828491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 692540 + ... + 694193.

It is an arithmetic number, because the mean of its divisors is an integer number (287053938).

Almost surely, 2^1146828191 is an apocalyptic number.

1146828191 is a deficient number, since it is larger than the sum of its proper divisors (1387561).

1146828191 is an equidigital number, since it uses as much as digits as its factorization.

1146828191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1387560.

The product of its digits is 27648, while the sum is 41.

The square root of 1146828191 is about 33864.8518526215. The cubic root of 1146828191 is about 1046.7254572415.

The spelling of 1146828191 in words is "one billion, one hundred forty-six million, eight hundred twenty-eight thousand, one hundred ninety-one".