132423505 has 4 divisors (see below), whose sum is σ = 158908212. Its totient is φ = 105938800.

The previous prime is 132423503. The next prime is 132423517. The reversal of 132423505 is 505324231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 505324231 = 3121 ⋅161911.

It can be written as a sum of positive squares in 2 ways, for example, as 67765824 + 64657681 = 8232^2 + 8041^2 .

It is not a de Polignac number, because 132423505 - 2¹ = 132423503 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 132423505.

It is not an unprimeable number, because it can be changed into a prime (132423503) 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, 13242346 + ... + 13242355.

It is an arithmetic number, because the mean of its divisors is an integer number (39727053).

Almost surely, 2^132423505 is an apocalyptic number.

It is an amenable number.

132423505 is a deficient number, since it is larger than the sum of its proper divisors (26484707).

132423505 is an equidigital number, since it uses as much as digits as its factorization.

132423505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26484706.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 132423505 is about 11507.5412230415. The cubic root of 132423505 is about 509.7082850512.

Adding to 132423505 its reverse (505324231), we get a palindrome (637747736).

The spelling of 132423505 in words is "one hundred thirty-two million, four hundred twenty-three thousand, five hundred five".