132819881 has 2 divisors, whose sum is σ = 132819882. Its totient is φ = 132819880.

The previous prime is 132819859. The next prime is 132819931. The reversal of 132819881 is 188918231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 103713856 + 29106025 = 10184^2 + 5395^2 .

It is an emirp because it is prime and its reverse (188918231) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-132819881 is a prime.

It is a super-2 number, since 2×132819881² = 35282241577708322, which contains 22 as substring.

It is a Chen prime.

It is equal to p_7528964 and since 132819881 and 7528964 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (132819811) 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 as a sum of consecutive naturals, namely, 66409940 + 66409941.

It is an arithmetic number, because the mean of its divisors is an integer number (66409941).

Almost surely, 2^132819881 is an apocalyptic number.

It is an amenable number.

132819881 is a deficient number, since it is larger than the sum of its proper divisors (1).

132819881 is an equidigital number, since it uses as much as digits as its factorization.

132819881 is an odious number, because the sum of its binary digits is odd.

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

The square root of 132819881 is about 11524.7507999089. The cubic root of 132819881 is about 510.2163390772.

The spelling of 132819881 in words is "one hundred thirty-two million, eight hundred nineteen thousand, eight hundred eighty-one".