134781468 has 12 divisors (see below), whose sum is σ = 314490120. Its totient is φ = 44927152.

The previous prime is 134781463. The next prime is 134781481. The reversal of 134781468 is 864187431.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134781461) 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, 5615883 + ... + 5615906.

It is an arithmetic number, because the mean of its divisors is an integer number (26207510).

Almost surely, 2^134781468 is an apocalyptic number.

It is an amenable number.

134781468 is an abundant number, since it is smaller than the sum of its proper divisors (179708652).

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

134781468 is a wasteful number, since it uses less digits than its factorization.

134781468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11231796 (or 11231794 counting only the distinct ones).

The product of its digits is 129024, while the sum is 42.

The square root of 134781468 is about 11609.5421098336. The cubic root of 134781468 is about 512.7158312032.

The spelling of 134781468 in words is "one hundred thirty-four million, seven hundred eighty-one thousand, four hundred sixty-eight".