134443393 has 4 divisors (see below), whose sum is σ = 153649600. Its totient is φ = 115237188.

The previous prime is 134443367. The next prime is 134443409. The reversal of 134443393 is 393344431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 134443393 - 2⁹ = 134442881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134443313) 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, 9603093 + ... + 9603106.

It is an arithmetic number, because the mean of its divisors is an integer number (38412400).

Almost surely, 2^134443393 is an apocalyptic number.

It is an amenable number.

134443393 is a deficient number, since it is larger than the sum of its proper divisors (19206207).

134443393 is an equidigital number, since it uses as much as digits as its factorization.

134443393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19206206.

The product of its digits is 46656, while the sum is 34.

The square root of 134443393 is about 11594.9727468416. The cubic root of 134443393 is about 512.2867872177.

The spelling of 134443393 in words is "one hundred thirty-four million, four hundred forty-three thousand, three hundred ninety-three".