134243321 has 8 divisors (see below), whose sum is σ = 137012544. Its totient is φ = 131498640.

The previous prime is 134243311. The next prime is 134243359. The reversal of 134243321 is 123342431.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-134243321 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (134243311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5126 + ... + 17168.

It is an arithmetic number, because the mean of its divisors is an integer number (17126568).

Almost surely, 2^134243321 is an apocalyptic number.

It is an amenable number.

134243321 is a deficient number, since it is larger than the sum of its proper divisors (2769223).

134243321 is a wasteful number, since it uses less digits than its factorization.

134243321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12271.

The product of its digits is 1728, while the sum is 23.

The square root of 134243321 is about 11586.3420025477. The cubic root of 134243321 is about 512.0325411141.

Adding to 134243321 its reverse (123342431), we get a palindrome (257585752).

The spelling of 134243321 in words is "one hundred thirty-four million, two hundred forty-three thousand, three hundred twenty-one".