134331213 has 8 divisors (see below), whose sum is σ = 180144288. Its totient is φ = 89036144.

The previous prime is 134331209. The next prime is 134331221. The reversal of 134331213 is 312133431.

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

It is a cyclic number.

It is not a de Polignac number, because 134331213 - 2² = 134331209 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 134331213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134331283) 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, 128895 + ... + 129932.

It is an arithmetic number, because the mean of its divisors is an integer number (22518036).

Almost surely, 2^134331213 is an apocalyptic number.

It is an amenable number.

134331213 is a deficient number, since it is larger than the sum of its proper divisors (45813075).

134331213 is a wasteful number, since it uses less digits than its factorization.

134331213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259003.

The product of its digits is 648, while the sum is 21.

The square root of 134331213 is about 11590.1342960295. The cubic root of 134331213 is about 512.1442629878.

Adding to 134331213 its reverse (312133431), we get a palindrome (446464644).

The spelling of 134331213 in words is "one hundred thirty-four million, three hundred thirty-one thousand, two hundred thirteen".