134347747 has 4 divisors (see below), whose sum is σ = 134426656. Its totient is φ = 134268840.

The previous prime is 134347723. The next prime is 134347757. The reversal of 134347747 is 747743431.

134347747 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-134347747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134347757) 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, 36843 + ... + 40324.

It is an arithmetic number, because the mean of its divisors is an integer number (33606664).

Almost surely, 2^134347747 is an apocalyptic number.

134347747 is a deficient number, since it is larger than the sum of its proper divisors (78909).

134347747 is an equidigital number, since it uses as much as digits as its factorization.

134347747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78908.

The product of its digits is 197568, while the sum is 40.

The square root of 134347747 is about 11590.8475531343. The cubic root of 134347747 is about 512.1652743514.

The spelling of 134347747 in words is "one hundred thirty-four million, three hundred forty-seven thousand, seven hundred forty-seven".