134203213 has 16 divisors (see below), whose sum is σ = 147196800. Its totient is φ = 121867200.

The previous prime is 134203171. The next prime is 134203217. The reversal of 134203213 is 312302431.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-134203213 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134203217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82395 + ... + 84007.

It is an arithmetic number, because the mean of its divisors is an integer number (9199800).

Almost surely, 2^134203213 is an apocalyptic number.

It is an amenable number.

134203213 is a deficient number, since it is larger than the sum of its proper divisors (12993587).

134203213 is a wasteful number, since it uses less digits than its factorization.

134203213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1812.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 134203213 is about 11584.6110422405. The cubic root of 134203213 is about 511.9815425577.

Adding to 134203213 its reverse (312302431), we get a palindrome (446505644).

The spelling of 134203213 in words is "one hundred thirty-four million, two hundred three thousand, two hundred thirteen".