134513423 has 4 divisors (see below), whose sum is σ = 146741928. Its totient is φ = 122284920.

The previous prime is 134513419. The next prime is 134513437. The reversal of 134513423 is 324315431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 324315431 = 11 ⋅29483221.

It is a cyclic number.

It is not a de Polignac number, because 134513423 - 2² = 134513419 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 134513392 and 134513401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134513023) 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, 6114236 + ... + 6114257.

It is an arithmetic number, because the mean of its divisors is an integer number (36685482).

Almost surely, 2^134513423 is an apocalyptic number.

134513423 is a deficient number, since it is larger than the sum of its proper divisors (12228505).

134513423 is a wasteful number, since it uses less digits than its factorization.

134513423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12228504.

The product of its digits is 4320, while the sum is 26.

The square root of 134513423 is about 11597.9921969279. The cubic root of 134513423 is about 512.3757198549.

Adding to 134513423 its reverse (324315431), we get a palindrome (458828854).

The spelling of 134513423 in words is "one hundred thirty-four million, five hundred thirteen thousand, four hundred twenty-three".