132019805 has 4 divisors (see below), whose sum is σ = 158423772. Its totient is φ = 105615840.

The previous prime is 132019801. The next prime is 132019817. The reversal of 132019805 is 508910231.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32239684 + 99780121 = 5678^2 + 9989^2 .

It is not a de Polignac number, because 132019805 - 2² = 132019801 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 (132019801) 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, 13201976 + ... + 13201985.

It is an arithmetic number, because the mean of its divisors is an integer number (39605943).

Almost surely, 2^132019805 is an apocalyptic number.

It is an amenable number.

132019805 is a deficient number, since it is larger than the sum of its proper divisors (26403967).

132019805 is an equidigital number, since it uses as much as digits as its factorization.

132019805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26403966.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 132019805 is about 11489.9871627430. The cubic root of 132019805 is about 509.1898003382.

The spelling of 132019805 in words is "one hundred thirty-two million, nineteen thousand, eight hundred five".