135099638 has 8 divisors (see below), whose sum is σ = 205214880. Its totient is φ = 66694680.

The previous prime is 135099637. The next prime is 135099647. The reversal of 135099638 is 836990531.

135099638 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135099637) 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, 427373 + ... + 427688.

It is an arithmetic number, because the mean of its divisors is an integer number (25651860).

Almost surely, 2^135099638 is an apocalyptic number.

135099638 is a deficient number, since it is larger than the sum of its proper divisors (70115242).

135099638 is an equidigital number, since it uses as much as digits as its factorization.

135099638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 855142.

The product of its (nonzero) digits is 174960, while the sum is 44.

The square root of 135099638 is about 11623.2369845925. The cubic root of 135099638 is about 513.1189593245.

The spelling of 135099638 in words is "one hundred thirty-five million, ninety-nine thousand, six hundred thirty-eight".