135185844 has 12 divisors (see below), whose sum is σ = 315433664. Its totient is φ = 45061944.

The previous prime is 135185837. The next prime is 135185857. The reversal of 135185844 is 448581531.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5632732 + ... + 5632755.

Almost surely, 2^135185844 is an apocalyptic number.

It is an amenable number.

135185844 is an abundant number, since it is smaller than the sum of its proper divisors (180247820).

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

135185844 is a wasteful number, since it uses less digits than its factorization.

135185844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11265494 (or 11265492 counting only the distinct ones).

The product of its digits is 76800, while the sum is 39.

The square root of 135185844 is about 11626.9447405585. The cubic root of 135185844 is about 513.2280751558.

The spelling of 135185844 in words is "one hundred thirty-five million, one hundred eighty-five thousand, eight hundred forty-four".