132505231 has 8 divisors (see below), whose sum is σ = 141482880. Its totient is φ = 123795672.

The previous prime is 132505207. The next prime is 132505249.

132505231 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 132505231 - 2⁹ = 132504719 is a prime.

It is a super-2 number, since 2×132505231² = 35115272484726722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132505631) 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 7 ways as a sum of consecutive naturals, for example, 66001 + ... + 67978.

It is an arithmetic number, because the mean of its divisors is an integer number (17685360).

Almost surely, 2^132505231 is an apocalyptic number.

132505231 is a deficient number, since it is larger than the sum of its proper divisors (8977649).

132505231 is a wasteful number, since it uses less digits than its factorization.

132505231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134045.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 132505231 is about 11511.0916510990. The cubic root of 132505231 is about 509.8131200469.

It can be divided in two parts, 13250 and 5231, that added together give a palindrome (18481).

The spelling of 132505231 in words is "one hundred thirty-two million, five hundred five thousand, two hundred thirty-one".