132871565 has 4 divisors (see below), whose sum is σ = 159445884. Its totient is φ = 106297248.

The previous prime is 132871561. The next prime is 132871577. The reversal of 132871565 is 565178231.

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 22915369 + 109956196 = 4787^2 + 10486^2 .

It is a cyclic number.

It is not a de Polignac number, because 132871565 - 2² = 132871561 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 (132871561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13287152 + ... + 13287161.

It is an arithmetic number, because the mean of its divisors is an integer number (39861471).

Almost surely, 2^132871565 is an apocalyptic number.

It is an amenable number.

132871565 is a deficient number, since it is larger than the sum of its proper divisors (26574319).

132871565 is an equidigital number, since it uses as much as digits as its factorization.

132871565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26574318.

The product of its digits is 50400, while the sum is 38.

The square root of 132871565 is about 11526.9928862648. The cubic root of 132871565 is about 510.2825103997.

The spelling of 132871565 in words is "one hundred thirty-two million, eight hundred seventy-one thousand, five hundred sixty-five".