132243671491 has 4 divisors (see below), whose sum is σ = 132244406512. Its totient is φ = 132242936472.

The previous prime is 132243671479. The next prime is 132243671513. The reversal of 132243671491 is 194176342231.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 194176342231 = 29 ⋅6695735939.

It is a cyclic number.

It is not a de Polignac number, because 132243671491 - 2⁵ = 132243671459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (132243671291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104101 + ... + 524713.

It is an arithmetic number, because the mean of its divisors is an integer number (33061101628).

Almost surely, 2^132243671491 is an apocalyptic number.

132243671491 is a deficient number, since it is larger than the sum of its proper divisors (735021).

132243671491 is an equidigital number, since it uses as much as digits as its factorization.

132243671491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 735020.

The product of its digits is 217728, while the sum is 43.

The spelling of 132243671491 in words is "one hundred thirty-two billion, two hundred forty-three million, six hundred seventy-one thousand, four hundred ninety-one".