134340213 has 48 divisors (see below), whose sum is σ = 217774656. Its totient is φ = 73382400.

The previous prime is 134340197. The next prime is 134340223. The reversal of 134340213 is 312043431.

It is not a de Polignac number, because 134340213 - 2⁴ = 134340197 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 134340213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134340223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 334813 + ... + 335213.

It is an arithmetic number, because the mean of its divisors is an integer number (4536972).

Almost surely, 2^134340213 is an apocalyptic number.

It is an amenable number.

134340213 is a deficient number, since it is larger than the sum of its proper divisors (83434443).

134340213 is a wasteful number, since it uses less digits than its factorization.

134340213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514 (or 507 counting only the distinct ones).

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

The square root of 134340213 is about 11590.5225507740. The cubic root of 134340213 is about 512.1557003779.

Adding to 134340213 its reverse (312043431), we get a palindrome (446383644).

The spelling of 134340213 in words is "one hundred thirty-four million, three hundred forty thousand, two hundred thirteen".