135870696 has 120 divisors (see below), whose sum is σ = 413090370. Its totient is φ = 41477184.

The previous prime is 135870689. The next prime is 135870701. The reversal of 135870696 is 696078531.

It is a happy number.

135870696 is a `hidden beast` number, since 1 + 3 + 587 + 0 + 69 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 130644900 + 5225796 = 11430^2 + 2286^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 1069785 + ... + 1069911.

Almost surely, 2^135870696 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 135870696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (206545185).

135870696 is an abundant number, since it is smaller than the sum of its proper divisors (277219674).

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

135870696 is a wasteful number, since it uses less digits than its factorization.

135870696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285 (or 145 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 135870696 is about 11656.3586080731. The cubic root of 135870696 is about 514.0932875338.

The spelling of 135870696 in words is "one hundred thirty-five million, eight hundred seventy thousand, six hundred ninety-six".