135699193 has 4 divisors (see below), whose sum is σ = 155084800. Its totient is φ = 116313588.

The previous prime is 135699191. The next prime is 135699251. The reversal of 135699193 is 391996531.

135699193 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, 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 135699193 - 2¹ = 135699191 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135699191) 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, 9692793 + ... + 9692806.

It is an arithmetic number, because the mean of its divisors is an integer number (38771200).

Almost surely, 2^135699193 is an apocalyptic number.

It is an amenable number.

135699193 is a deficient number, since it is larger than the sum of its proper divisors (19385607).

135699193 is an equidigital number, since it uses as much as digits as its factorization.

135699193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19385606.

The product of its digits is 196830, while the sum is 46.

The square root of 135699193 is about 11648.9996566229. Note that the first 3 decimals coincide. The cubic root of 135699193 is about 513.8768914389.

The spelling of 135699193 in words is "one hundred thirty-five million, six hundred ninety-nine thousand, one hundred ninety-three".