135323571 has 4 divisors (see below), whose sum is σ = 180431432. Its totient is φ = 90215712.

The previous prime is 135323561. The next prime is 135323581. The reversal of 135323571 is 175323531.

135323571 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (135323561) and next prime (135323581).

It is not a de Polignac number, because 135323571 - 2⁷ = 135323443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135323561) 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, 22553926 + ... + 22553931.

It is an arithmetic number, because the mean of its divisors is an integer number (45107858).

Almost surely, 2^135323571 is an apocalyptic number.

135323571 is a deficient number, since it is larger than the sum of its proper divisors (45107861).

135323571 is an equidigital number, since it uses as much as digits as its factorization.

135323571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45107860.

The product of its digits is 9450, while the sum is 30.

The square root of 135323571 is about 11632.8659839267. The cubic root of 135323571 is about 513.4023078266.

The spelling of 135323571 in words is "one hundred thirty-five million, three hundred twenty-three thousand, five hundred seventy-one".