132447790505 has 4 divisors (see below), whose sum is σ = 158937348612. Its totient is φ = 105958232400.

The previous prime is 132447790471. The next prime is 132447790511. The reversal of 132447790505 is 505097744231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 505097744231 = 109 ⋅4633924259.

It can be written as a sum of positive squares in 2 ways, for example, as 51734412304 + 80713378201 = 227452^2 + 284101^2 .

It is not a de Polignac number, because 132447790505 - 2²⁰ = 132446741929 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 132447790505.

It is an unprimeable number.

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, 13244779046 + ... + 13244779055.

It is an arithmetic number, because the mean of its divisors is an integer number (39734337153).

Almost surely, 2^132447790505 is an apocalyptic number.

It is an amenable number.

132447790505 is a deficient number, since it is larger than the sum of its proper divisors (26489558107).

132447790505 is an equidigital number, since it uses as much as digits as its factorization.

132447790505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26489558106.

The product of its (nonzero) digits is 1058400, while the sum is 47.

The spelling of 132447790505 in words is "one hundred thirty-two billion, four hundred forty-seven million, seven hundred ninety thousand, five hundred five".