135587838 has 32 divisors (see below), whose sum is σ = 286329600. Its totient is φ = 42685056.

The previous prime is 135587813. The next prime is 135587849. The reversal of 135587838 is 838785531.

It is a happy number.

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, 39270 + ... + 42582.

It is an arithmetic number, because the mean of its divisors is an integer number (8947800).

Almost surely, 2^135587838 is an apocalyptic number.

135587838 is an abundant number, since it is smaller than the sum of its proper divisors (150741762).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135587838 is a wasteful number, since it uses less digits than its factorization.

135587838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3696.

The product of its digits is 806400, while the sum is 48.

The square root of 135587838 is about 11644.2190807284. The cubic root of 135587838 is about 513.7362902078.

The spelling of 135587838 in words is "one hundred thirty-five million, five hundred eighty-seven thousand, eight hundred thirty-eight".