135681134 has 8 divisors (see below), whose sum is σ = 205323120. Its totient is φ = 67240096.

The previous prime is 135681107. The next prime is 135681137. The reversal of 135681134 is 431186531.

135681134 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 135681134.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135681137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 299954 + ... + 300405.

It is an arithmetic number, because the mean of its divisors is an integer number (25665390).

Almost surely, 2^135681134 is an apocalyptic number.

135681134 is a deficient number, since it is larger than the sum of its proper divisors (69641986).

135681134 is a wasteful number, since it uses less digits than its factorization.

135681134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600474.

The product of its digits is 8640, while the sum is 32.

The square root of 135681134 is about 11648.2244998970. The cubic root of 135681134 is about 513.8540946576.

The spelling of 135681134 in words is "one hundred thirty-five million, six hundred eighty-one thousand, one hundred thirty-four".