132445091 has 4 divisors (see below), whose sum is σ = 134616384. Its totient is φ = 130273800.

The previous prime is 132445069. The next prime is 132445097. The reversal of 132445091 is 190544231.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-132445091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (132445097) 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 in 3 ways as a sum of consecutive naturals, for example, 1085555 + ... + 1085676.

It is an arithmetic number, because the mean of its divisors is an integer number (33654096).

Almost surely, 2^132445091 is an apocalyptic number.

132445091 is a deficient number, since it is larger than the sum of its proper divisors (2171293).

132445091 is an equidigital number, since it uses as much as digits as its factorization.

132445091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2171292.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 132445091 is about 11508.4790915220. The cubic root of 132445091 is about 509.7359789395.

The spelling of 132445091 in words is "one hundred thirty-two million, four hundred forty-five thousand, ninety-one".