213543034 has 4 divisors (see below), whose sum is σ = 320314554. Its totient is φ = 106771516.

The previous prime is 213543023. The next prime is 213543061. The reversal of 213543034 is 430345312.

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

It can be written as a sum of positive squares in only one way, i.e., 142730809 + 70812225 = 11947^2 + 8415^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53385757 + ... + 53385760.

Almost surely, 2^213543034 is an apocalyptic number.

213543034 is a deficient number, since it is larger than the sum of its proper divisors (106771520).

213543034 is a wasteful number, since it uses less digits than its factorization.

213543034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106771519.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 213543034 is about 14613.1117151687. Note that the first 3 decimals coincide. The cubic root of 213543034 is about 597.7163507522.

Adding to 213543034 its reverse (430345312), we get a palindrome (643888346).

The spelling of 213543034 in words is "two hundred thirteen million, five hundred forty-three thousand, thirty-four".