210345034 has 4 divisors (see below), whose sum is σ = 315517554. Its totient is φ = 105172516.

The previous prime is 210345011. The next prime is 210345049. The reversal of 210345034 is 430543012.

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., 209236225 + 1108809 = 14465^2 + 1053^2 .

It is a super-2 number, since 2×210345034² = 88490066656922312, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 210344996 and 210345014.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52586257 + ... + 52586260.

Almost surely, 2^210345034 is an apocalyptic number.

210345034 is a deficient number, since it is larger than the sum of its proper divisors (105172520).

210345034 is a wasteful number, since it uses less digits than its factorization.

210345034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105172519.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 210345034 is about 14503.2766642576. The cubic root of 210345034 is about 594.7175497197.

Adding to 210345034 its reverse (430543012), we get a palindrome (640888046).

The spelling of 210345034 in words is "two hundred ten million, three hundred forty-five thousand, thirty-four".