210542473 has 2 divisors, whose sum is σ = 210542474. Its totient is φ = 210542472.

The previous prime is 210542443. The next prime is 210542533. The reversal of 210542473 is 374245012.

210542473 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 207273609 + 3268864 = 14397^2 + 1808^2 .

It is a cyclic number.

It is not a de Polignac number, because 210542473 - 2⁵ = 210542441 is a prime.

It is not a weakly prime, because it can be changed into another prime (210542413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105271236 + 105271237.

It is an arithmetic number, because the mean of its divisors is an integer number (105271237).

Almost surely, 2^210542473 is an apocalyptic number.

It is an amenable number.

210542473 is a deficient number, since it is larger than the sum of its proper divisors (1).

210542473 is an equidigital number, since it uses as much as digits as its factorization.

210542473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 210542473 is about 14510.0817709619. The cubic root of 210542473 is about 594.9035674522.

Adding to 210542473 its reverse (374245012), we get a palindrome (584787485).

The spelling of 210542473 in words is "two hundred ten million, five hundred forty-two thousand, four hundred seventy-three".