135638895 has 16 divisors (see below), whose sum is σ = 248025600. Its totient is φ = 62006304.

The previous prime is 135638879. The next prime is 135638933. The reversal of 135638895 is 598836531.

It is not a de Polignac number, because 135638895 - 2⁴ = 135638879 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 645795 + ... + 646004.

It is an arithmetic number, because the mean of its divisors is an integer number (15501600).

Almost surely, 2^135638895 is an apocalyptic number.

135638895 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

135638895 is a deficient number, since it is larger than the sum of its proper divisors (112386705).

135638895 is a wasteful number, since it uses less digits than its factorization.

135638895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1291814.

The product of its digits is 777600, while the sum is 48.

The square root of 135638895 is about 11646.4112498228. The cubic root of 135638895 is about 513.8007663498.

The spelling of 135638895 in words is "one hundred thirty-five million, six hundred thirty-eight thousand, eight hundred ninety-five".