135201435443 has 4 divisors (see below), whose sum is σ = 135205178808. Its totient is φ = 135197692080.

The previous prime is 135201435433. The next prime is 135201435451. The reversal of 135201435443 is 344534102531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 344534102531 = 1987 ⋅173394113.

It is a cyclic number.

It is not a de Polignac number, because 135201435443 - 2⁶ = 135201435379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135201435403) 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, 1816973 + ... + 1889918.

It is an arithmetic number, because the mean of its divisors is an integer number (33801294702).

Almost surely, 2^135201435443 is an apocalyptic number.

135201435443 is a deficient number, since it is larger than the sum of its proper divisors (3743365).

135201435443 is an equidigital number, since it uses as much as digits as its factorization.

135201435443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3743364.

The product of its (nonzero) digits is 86400, while the sum is 35.

Adding to 135201435443 its reverse (344534102531), we get a palindrome (479735537974).

The spelling of 135201435443 in words is "one hundred thirty-five billion, two hundred one million, four hundred thirty-five thousand, four hundred forty-three".