135838615 has 8 divisors (see below), whose sum is σ = 177825168. Its totient is φ = 98791680.

The previous prime is 135838613. The next prime is 135838631. The reversal of 135838615 is 516838531.

135838615 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 not a de Polignac number, because 135838615 - 2¹ = 135838613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135838613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1234842 + ... + 1234951.

It is an arithmetic number, because the mean of its divisors is an integer number (22228146).

Almost surely, 2^135838615 is an apocalyptic number.

135838615 is a deficient number, since it is larger than the sum of its proper divisors (41986553).

135838615 is a wasteful number, since it uses less digits than its factorization.

135838615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2469809.

The product of its digits is 86400, while the sum is 40.

The square root of 135838615 is about 11654.9824109691. The cubic root of 135838615 is about 514.0528227746.

The spelling of 135838615 in words is "one hundred thirty-five million, eight hundred thirty-eight thousand, six hundred fifteen".