134320547 has 4 divisors (see below), whose sum is σ = 138952320. Its totient is φ = 129688776.

The previous prime is 134320541. The next prime is 134320561. The reversal of 134320547 is 745023431.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 745023431 = 2609 ⋅285559.

It is a cyclic number.

It is not a de Polignac number, because 134320547 - 2¹⁸ = 134058403 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 4631743 = 134320547 / (1 + 3 + 4 + 3 + 2 + 0 + 5 + 4 + 7).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134320541) 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, 2315843 + ... + 2315900.

It is an arithmetic number, because the mean of its divisors is an integer number (34738080).

Almost surely, 2^134320547 is an apocalyptic number.

134320547 is a deficient number, since it is larger than the sum of its proper divisors (4631773).

134320547 is an equidigital number, since it uses as much as digits as its factorization.

134320547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4631772.

The product of its (nonzero) digits is 10080, while the sum is 29.

The square root of 134320547 is about 11589.6741541771. The cubic root of 134320547 is about 512.1307077484.

Adding to 134320547 its reverse (745023431), we get a palindrome (879343978).

The spelling of 134320547 in words is "one hundred thirty-four million, three hundred twenty thousand, five hundred forty-seven".