135499896 has 144 divisors (see below), whose sum is σ = 431262000. Its totient is φ = 38320128.

The previous prime is 135499867. The next prime is 135499927. The reversal of 135499896 is 698994531.

135499896 is a `hidden beast` number, since 1 + 3 + 549 + 9 + 8 + 96 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 680805 + ... + 681003.

It is an arithmetic number, because the mean of its divisors is an integer number (2994875).

Almost surely, 2^135499896 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 135499896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (215631000).

135499896 is an abundant number, since it is smaller than the sum of its proper divisors (295762104).

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

135499896 is a wasteful number, since it uses less digits than its factorization.

135499896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418 (or 404 counting only the distinct ones).

The product of its digits is 2099520, while the sum is 54.

The square root of 135499896 is about 11640.4422596395. The cubic root of 135499896 is about 513.6251967433.

The spelling of 135499896 in words is "one hundred thirty-five million, four hundred ninety-nine thousand, eight hundred ninety-six".