134198213 has 4 divisors (see below), whose sum is σ = 135177900. Its totient is φ = 133218528.

The previous prime is 134198201. The next prime is 134198249. The reversal of 134198213 is 312891431.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 53611684 + 80586529 = 7322^2 + 8977^2 .

It is a cyclic number.

It is not a de Polignac number, because 134198213 - 2⁸ = 134197957 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 134198213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134198263) 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, 489638 + ... + 489911.

It is an arithmetic number, because the mean of its divisors is an integer number (33794475).

Almost surely, 2^134198213 is an apocalyptic number.

It is an amenable number.

134198213 is a deficient number, since it is larger than the sum of its proper divisors (979687).

134198213 is an equidigital number, since it uses as much as digits as its factorization.

134198213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 979686.

The product of its digits is 5184, while the sum is 32.

The square root of 134198213 is about 11584.3952366966. The cubic root of 134198213 is about 511.9751841915.

The spelling of 134198213 in words is "one hundred thirty-four million, one hundred ninety-eight thousand, two hundred thirteen".