135387238 has 16 divisors (see below), whose sum is σ = 232243200. Its totient is φ = 57985416.

The previous prime is 135387229. The next prime is 135387257. The reversal of 135387238 is 832783531.

It is a self number, because there is not a number n which added to its sum of digits gives 135387238.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35995 + ... + 39577.

It is an arithmetic number, because the mean of its divisors is an integer number (14515200).

Almost surely, 2^135387238 is an apocalyptic number.

135387238 is a deficient number, since it is larger than the sum of its proper divisors (96855962).

135387238 is a wasteful number, since it uses less digits than its factorization.

135387238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6291.

The product of its digits is 120960, while the sum is 40.

The square root of 135387238 is about 11635.6021760801. The cubic root of 135387238 is about 513.4828103330.

The spelling of 135387238 in words is "one hundred thirty-five million, three hundred eighty-seven thousand, two hundred thirty-eight".