213210034 has 4 divisors (see below), whose sum is σ = 319815054. Its totient is φ = 106605016.

The previous prime is 213210017. The next prime is 213210047. The reversal of 213210034 is 430012312.

It is a happy number.

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., 210337009 + 2873025 = 14503^2 + 1695^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53302507 + ... + 53302510.

Almost surely, 2^213210034 is an apocalyptic number.

213210034 is a deficient number, since it is larger than the sum of its proper divisors (106605020).

213210034 is a wasteful number, since it uses less digits than its factorization.

213210034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106605019.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 213210034 is about 14601.7133926125. The cubic root of 213210034 is about 597.4054952276.

Adding to 213210034 its reverse (430012312), we get a palindrome (643222346).

The spelling of 213210034 in words is "two hundred thirteen million, two hundred ten thousand, thirty-four".