134782447 has 4 divisors (see below), whose sum is σ = 141876280. Its totient is φ = 127688616.

The previous prime is 134782423. The next prime is 134782469. The reversal of 134782447 is 744287431.

134782447 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-134782447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134782247) 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, 3546888 + ... + 3546925.

It is an arithmetic number, because the mean of its divisors is an integer number (35469070).

Almost surely, 2^134782447 is an apocalyptic number.

134782447 is a deficient number, since it is larger than the sum of its proper divisors (7093833).

134782447 is an equidigital number, since it uses as much as digits as its factorization.

134782447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7093832.

The product of its digits is 150528, while the sum is 40.

The square root of 134782447 is about 11609.5842733493. The cubic root of 134782447 is about 512.7170725895.

The spelling of 134782447 in words is "one hundred thirty-four million, seven hundred eighty-two thousand, four hundred forty-seven".