134135808 has 60 divisors (see below), whose sum is σ = 357815640. Its totient is φ = 44695552.

The previous prime is 134135803. The next prime is 134135819. The reversal of 134135808 is 808531431.

It is a nialpdrome in base 8.

It is not an unprimeable number, because it can be changed into a prime (134135803) 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, 47788 + ... + 50516.

It is an arithmetic number, because the mean of its divisors is an integer number (5963594).

Almost surely, 2^134135808 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 134135808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178907820).

134135808 is an abundant number, since it is smaller than the sum of its proper divisors (223679832).

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

134135808 is an frugal number, since it uses more digits than its factorization.

134135808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2760 (or 2734 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 134135808 is about 11581.7014294101. The cubic root of 134135808 is about 511.8958121334.

The spelling of 134135808 in words is "one hundred thirty-four million, one hundred thirty-five thousand, eight hundred eight".