210145304 has 8 divisors (see below), whose sum is σ = 394022460. Its totient is φ = 105072648.

The previous prime is 210145297. The next prime is 210145307. The reversal of 210145304 is 403541012.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×210145304² = 88322097586504832, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210145307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13134074 + ... + 13134089.

Almost surely, 2^210145304 is an apocalyptic number.

It is an amenable number.

210145304 is a deficient number, since it is larger than the sum of its proper divisors (183877156).

210145304 is a wasteful number, since it uses less digits than its factorization.

210145304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26268169 (or 26268165 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 210145304 is about 14496.3893435572. The cubic root of 210145304 is about 594.5292550402.

Adding to 210145304 its reverse (403541012), we get a palindrome (613686316).

The spelling of 210145304 in words is "two hundred ten million, one hundred forty-five thousand, three hundred four".