132811440891 has 4 divisors (see below), whose sum is σ = 177081921192. Its totient is φ = 88540960592.

The previous prime is 132811440857. The next prime is 132811440893. The reversal of 132811440891 is 198044118231.

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 132811440891 - 2²² = 132807246587 is a prime.

It is not an unprimeable number, because it can be changed into a prime (132811440893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22135240146 + ... + 22135240151.

It is an arithmetic number, because the mean of its divisors is an integer number (44270480298).

Almost surely, 2^132811440891 is an apocalyptic number.

132811440891 is a deficient number, since it is larger than the sum of its proper divisors (44270480301).

132811440891 is an equidigital number, since it uses as much as digits as its factorization.

132811440891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44270480300.

The product of its (nonzero) digits is 55296, while the sum is 42.

The spelling of 132811440891 in words is "one hundred thirty-two billion, eight hundred eleven million, four hundred forty thousand, eight hundred ninety-one".