210450243 has 4 divisors (see below), whose sum is σ = 280600328. Its totient is φ = 140300160.

The previous prime is 210450239. The next prime is 210450263. The reversal of 210450243 is 342054012.

210450243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 210450243 - 2² = 210450239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210450223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35075038 + ... + 35075043.

It is an arithmetic number, because the mean of its divisors is an integer number (70150082).

Almost surely, 2^210450243 is an apocalyptic number.

210450243 is a deficient number, since it is larger than the sum of its proper divisors (70150085).

210450243 is an equidigital number, since it uses as much as digits as its factorization.

210450243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70150084.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 210450243 is about 14506.9032877455. The cubic root of 210450243 is about 594.8166871678.

The spelling of 210450243 in words is "two hundred ten million, four hundred fifty thousand, two hundred forty-three".