132128345 has 4 divisors (see below), whose sum is σ = 158554020. Its totient is φ = 105702672.

The previous prime is 132128333. The next prime is 132128351. The reversal of 132128345 is 543821231.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 543821231 = 59 ⋅9217309.

It can be written as a sum of positive squares in 2 ways, for example, as 44368921 + 87759424 = 6661^2 + 9368^2 .

It is a cyclic number.

It is not a de Polignac number, because 132128345 - 2¹⁴ = 132111961 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13212830 + ... + 13212839.

It is an arithmetic number, because the mean of its divisors is an integer number (39638505).

Almost surely, 2^132128345 is an apocalyptic number.

It is an amenable number.

132128345 is a deficient number, since it is larger than the sum of its proper divisors (26425675).

132128345 is an equidigital number, since it uses as much as digits as its factorization.

132128345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26425674.

The product of its digits is 5760, while the sum is 29.

The square root of 132128345 is about 11494.7094352141. The cubic root of 132128345 is about 509.3293054723.

Adding to 132128345 its reverse (543821231), we get a palindrome (675949576).

The spelling of 132128345 in words is "one hundred thirty-two million, one hundred twenty-eight thousand, three hundred forty-five".