210045306 has 16 divisors (see below), whose sum is σ = 421896384. Its totient is φ = 69714144.

The previous prime is 210045299. The next prime is 210045313. The reversal of 210045306 is 603540012.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (210045299) and next prime (210045313).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73726 + ... + 76521.

It is an arithmetic number, because the mean of its divisors is an integer number (26368524).

Almost surely, 2^210045306 is an apocalyptic number.

210045306 is an abundant number, since it is smaller than the sum of its proper divisors (211851078).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

210045306 is a wasteful number, since it uses less digits than its factorization.

210045306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150485.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 210045306 is about 14492.9398673975. The cubic root of 210045306 is about 594.4349374928.

Adding to 210045306 its reverse (603540012), we get a palindrome (813585318).

The spelling of 210045306 in words is "two hundred ten million, forty-five thousand, three hundred six".