134403123 has 4 divisors (see below), whose sum is σ = 179204168. Its totient is φ = 89602080.

The previous prime is 134403119. The next prime is 134403151. The reversal of 134403123 is 321304431.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 134403123 - 2² = 134403119 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 134403123.

It is not an unprimeable number, because it can be changed into a prime (134403193) 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, 22400518 + ... + 22400523.

It is an arithmetic number, because the mean of its divisors is an integer number (44801042).

Almost surely, 2^134403123 is an apocalyptic number.

134403123 is a deficient number, since it is larger than the sum of its proper divisors (44801045).

134403123 is an equidigital number, since it uses as much as digits as its factorization.

134403123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44801044.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 134403123 is about 11593.2360883405. The cubic root of 134403123 is about 512.2356334729.

Adding to 134403123 its reverse (321304431), we get a palindrome (455707554).

The spelling of 134403123 in words is "one hundred thirty-four million, four hundred three thousand, one hundred twenty-three".