134311213 has 4 divisors (see below), whose sum is σ = 134334400. Its totient is φ = 134288028.

The previous prime is 134311211. The next prime is 134311223. The reversal of 134311213 is 312113431.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 312113431 = 7 ⋅44587633.

It is a cyclic number.

It is not a de Polignac number, because 134311213 - 2¹ = 134311211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134311211) 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 3 ways as a sum of consecutive naturals, for example, 5356 + ... + 17242.

It is an arithmetic number, because the mean of its divisors is an integer number (33583600).

Almost surely, 2^134311213 is an apocalyptic number.

It is an amenable number.

134311213 is a deficient number, since it is larger than the sum of its proper divisors (23187).

134311213 is a wasteful number, since it uses less digits than its factorization.

134311213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23186.

The product of its digits is 216, while the sum is 19.

The square root of 134311213 is about 11589.2714611403. The cubic root of 134311213 is about 512.1188447364.

Adding to 134311213 its reverse (312113431), we get a palindrome (446424644).

The spelling of 134311213 in words is "one hundred thirty-four million, three hundred eleven thousand, two hundred thirteen".