134387968 has 72 divisors (see below), whose sum is σ = 315233856. Its totient is φ = 56371200.

The previous prime is 134387933. The next prime is 134387983. The reversal of 134387968 is 869783431.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34773 + ... + 38443.

It is an arithmetic number, because the mean of its divisors is an integer number (4378248).

Almost surely, 2^134387968 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 134387968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157616928).

134387968 is an abundant number, since it is smaller than the sum of its proper divisors (180845888).

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

134387968 is a wasteful number, since it uses less digits than its factorization.

134387968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3711 (or 3697 counting only the distinct ones).

The product of its digits is 870912, while the sum is 49.

The square root of 134387968 is about 11592.5824560363. The cubic root of 134387968 is about 512.2163798955.

The spelling of 134387968 in words is "one hundred thirty-four million, three hundred eighty-seven thousand, nine hundred sixty-eight".