135688192 has 52 divisors (see below), whose sum is σ = 274365736. Its totient is φ = 67092480.

The previous prime is 135688153. The next prime is 135688211. The reversal of 135688192 is 291886531.

It is a super-2 number, since 2×135688192² = 36822570896457728, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 642967 + ... + 643177.

Almost surely, 2^135688192 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 135688192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137182868).

135688192 is an abundant number, since it is smaller than the sum of its proper divisors (138677544).

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

135688192 is an equidigital number, since it uses as much as digits as its factorization.

135688192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392 (or 370 counting only the distinct ones).

The product of its digits is 103680, while the sum is 43.

The square root of 135688192 is about 11648.5274605849. The cubic root of 135688192 is about 513.8630045657.

The spelling of 135688192 in words is "one hundred thirty-five million, six hundred eighty-eight thousand, one hundred ninety-two".