135245443 has 4 divisors (see below), whose sum is σ = 135269568. Its totient is φ = 135221320.

The previous prime is 135245431. The next prime is 135245447. The reversal of 135245443 is 344542531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 344542531 = 43 ⋅8012617.

It is a cyclic number.

It is not a de Polignac number, because 135245443 - 2²⁵ = 101691011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135245447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1230 + ... + 16492.

It is an arithmetic number, because the mean of its divisors is an integer number (33817392).

Almost surely, 2^135245443 is an apocalyptic number.

135245443 is a deficient number, since it is larger than the sum of its proper divisors (24125).

135245443 is an equidigital number, since it uses as much as digits as its factorization.

135245443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24124.

The product of its digits is 28800, while the sum is 31.

The square root of 135245443 is about 11629.5074272301. The cubic root of 135245443 is about 513.3034858772.

Adding to 135245443 its reverse (344542531), we get a palindrome (479787974).

The spelling of 135245443 in words is "one hundred thirty-five million, two hundred forty-five thousand, four hundred forty-three".