135994224 has 80 divisors (see below), whose sum is σ = 366405120. Its totient is φ = 43411200.

The previous prime is 135994219. The next prime is 135994231. The reversal of 135994224 is 422499531.

It is a super-2 number, since 2×135994224² = 36988857922724352, which contains 22 as substring.

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, 209869 + ... + 210515.

It is an arithmetic number, because the mean of its divisors is an integer number (4580064).

Almost surely, 2^135994224 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 135994224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183202560).

135994224 is an abundant number, since it is smaller than the sum of its proper divisors (230410896).

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

135994224 is a wasteful number, since it uses less digits than its factorization.

135994224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838 (or 832 counting only the distinct ones).

The product of its digits is 77760, while the sum is 39.

The square root of 135994224 is about 11661.6561431042. The cubic root of 135994224 is about 514.2490377725.

The spelling of 135994224 in words is "one hundred thirty-five million, nine hundred ninety-four thousand, two hundred twenty-four".