132828191 has 4 divisors (see below), whose sum is σ = 140641632. Its totient is φ = 125014752.

The previous prime is 132828181. The next prime is 132828193. The reversal of 132828191 is 191828231.

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 132828191 - 2⁶ = 132828127 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 (132828193) 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, 3906695 + ... + 3906728.

It is an arithmetic number, because the mean of its divisors is an integer number (35160408).

Almost surely, 2^132828191 is an apocalyptic number.

132828191 is a deficient number, since it is larger than the sum of its proper divisors (7813441).

132828191 is an equidigital number, since it uses as much as digits as its factorization.

132828191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7813440.

The product of its digits is 6912, while the sum is 35.

The square root of 132828191 is about 11525.1113226728. Note that the first 3 decimals coincide. The cubic root of 132828191 is about 510.2269795760.

The spelling of 132828191 in words is "one hundred thirty-two million, eight hundred twenty-eight thousand, one hundred ninety-one".