213030134 has 4 divisors (see below), whose sum is σ = 319545204. Its totient is φ = 106515066.

The previous prime is 213030121. The next prime is 213030151. The reversal of 213030134 is 431030312.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53257532 + ... + 53257535.

It is an arithmetic number, because the mean of its divisors is an integer number (79886301).

Almost surely, 2^213030134 is an apocalyptic number.

213030134 is a deficient number, since it is larger than the sum of its proper divisors (106515070).

213030134 is a wasteful number, since it uses less digits than its factorization.

213030134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106515069.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 213030134 is about 14595.5518566445. The cubic root of 213030134 is about 597.2374238845.

Adding to 213030134 its reverse (431030312), we get a palindrome (644060446).

The spelling of 213030134 in words is "two hundred thirteen million, thirty thousand, one hundred thirty-four".