134213523 has 8 divisors (see below), whose sum is σ = 179740608. Its totient is φ = 89081064.

The previous prime is 134213507. The next prime is 134213531. The reversal of 134213523 is 325312431.

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

It is not a de Polignac number, because 134213523 - 2⁴ = 134213507 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 134213493 and 134213502.

It is not an unprimeable number, because it can be changed into a prime (134213323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97861 + ... + 99222.

It is an arithmetic number, because the mean of its divisors is an integer number (22467576).

Almost surely, 2^134213523 is an apocalyptic number.

134213523 is a deficient number, since it is larger than the sum of its proper divisors (45527085).

134213523 is a wasteful number, since it uses less digits than its factorization.

134213523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197313.

The product of its digits is 2160, while the sum is 24.

The square root of 134213523 is about 11585.0560205810. The cubic root of 134213523 is about 511.9946530102.

Adding to 134213523 its reverse (325312431), we get a palindrome (459525954).

The spelling of 134213523 in words is "one hundred thirty-four million, two hundred thirteen thousand, five hundred twenty-three".