210700045 has 8 divisors (see below), whose sum is σ = 252921240. Its totient is φ = 168505920.

The previous prime is 210700027. The next prime is 210700067. The reversal of 210700045 is 540007012.

It can be written as a sum of positive squares in 4 ways, for example, as 56220004 + 154480041 = 7498^2 + 12429^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 210700045 - 2¹¹ = 210697997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 210699995 and 210700031.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19971 + ... + 28639.

It is an arithmetic number, because the mean of its divisors is an integer number (31615155).

Almost surely, 2^210700045 is an apocalyptic number.

It is an amenable number.

210700045 is a deficient number, since it is larger than the sum of its proper divisors (42221195).

210700045 is an equidigital number, since it uses as much as digits as its factorization.

210700045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13535.

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 210700045 is about 14515.5104973955. The cubic root of 210700045 is about 595.0519409497.

Adding to 210700045 its reverse (540007012), we get a palindrome (750707057).

The spelling of 210700045 in words is "two hundred ten million, seven hundred thousand, forty-five".