210994645 has 8 divisors (see below), whose sum is σ = 253296000. Its totient is φ = 168727440.

The previous prime is 210994627. The next prime is 210994657. The reversal of 210994645 is 546499012.

210994645 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 210994645 - 2⁵ = 210994613 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 210994598 and 210994607.

It is a congruent number.

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, 7960 + ... + 22030.

It is an arithmetic number, because the mean of its divisors is an integer number (31662000).

Almost surely, 2^210994645 is an apocalyptic number.

It is an amenable number.

210994645 is a deficient number, since it is larger than the sum of its proper divisors (42301355).

210994645 is a wasteful number, since it uses less digits than its factorization.

210994645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17075.

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 210994645 is about 14525.6547184628. The cubic root of 210994645 is about 595.3291449134.

The spelling of 210994645 in words is "two hundred ten million, nine hundred ninety-four thousand, six hundred forty-five".