134720345 has 8 divisors (see below), whose sum is σ = 161779200. Its totient is φ = 107699760.

The previous prime is 134720323. The next prime is 134720347. The reversal of 134720345 is 543027431.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 134720345 - 2¹² = 134716249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (134720347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1145 + ... + 16454.

It is an arithmetic number, because the mean of its divisors is an integer number (20222400).

Almost surely, 2^134720345 is an apocalyptic number.

It is an amenable number.

134720345 is a deficient number, since it is larger than the sum of its proper divisors (27058855).

134720345 is a wasteful number, since it uses less digits than its factorization.

134720345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19135.

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

The square root of 134720345 is about 11606.9093646845. The cubic root of 134720345 is about 512.6383144428.

Adding to 134720345 its reverse (543027431), we get a palindrome (677747776).

The spelling of 134720345 in words is "one hundred thirty-four million, seven hundred twenty thousand, three hundred forty-five".