132581819 has 2 divisors, whose sum is σ = 132581820. Its totient is φ = 132581818.

The previous prime is 132581809. The next prime is 132581833. The reversal of 132581819 is 918185231.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 132581819 - 2⁴ = 132581803 is a prime.

It is a super-2 number, since 2×132581819² = 35155877458697522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (132581809) 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, 66290909 + 66290910.

It is an arithmetic number, because the mean of its divisors is an integer number (66290910).

Almost surely, 2^132581819 is an apocalyptic number.

132581819 is a deficient number, since it is larger than the sum of its proper divisors (1).

132581819 is an equidigital number, since it uses as much as digits as its factorization.

132581819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 38.

The square root of 132581819 is about 11514.4178749948. The cubic root of 132581819 is about 509.9113250928.

The spelling of 132581819 in words is "one hundred thirty-two million, five hundred eighty-one thousand, eight hundred nineteen".