135053393 has 4 divisors (see below), whose sum is σ = 135567168. Its totient is φ = 134539620.

The previous prime is 135053371. The next prime is 135053407. The reversal of 135053393 is 393350531.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 135053393 - 2²⁰ = 134004817 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (135053323) 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, 256493 + ... + 257018.

It is an arithmetic number, because the mean of its divisors is an integer number (33891792).

Almost surely, 2^135053393 is an apocalyptic number.

It is an amenable number.

135053393 is a deficient number, since it is larger than the sum of its proper divisors (513775).

135053393 is an equidigital number, since it uses as much as digits as its factorization.

135053393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513774.

The product of its (nonzero) digits is 18225, while the sum is 32.

The square root of 135053393 is about 11621.2474803697. The cubic root of 135053393 is about 513.0604052710.

The spelling of 135053393 in words is "one hundred thirty-five million, fifty-three thousand, three hundred ninety-three".