134213143 has 4 divisors (see below), whose sum is σ = 135542088. Its totient is φ = 132884200.

The previous prime is 134213111. The next prime is 134213231. The reversal of 134213143 is 341312431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 341312431 = 101 ⋅3379331.

It is a cyclic number.

It is not a de Polignac number, because 134213143 - 2⁵ = 134213111 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 (134213843) 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, 664321 + ... + 664522.

It is an arithmetic number, because the mean of its divisors is an integer number (33885522).

Almost surely, 2^134213143 is an apocalyptic number.

134213143 is a deficient number, since it is larger than the sum of its proper divisors (1328945).

134213143 is a wasteful number, since it uses less digits than its factorization.

134213143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1328944.

The product of its digits is 864, while the sum is 22.

The square root of 134213143 is about 11585.0396201308. The cubic root of 134213143 is about 511.9941698046.

Adding to 134213143 its reverse (341312431), we get a palindrome (475525574).

The spelling of 134213143 in words is "one hundred thirty-four million, two hundred thirteen thousand, one hundred forty-three".