210475493 has 2 divisors, whose sum is σ = 210475494. Its totient is φ = 210475492.

The previous prime is 210475471. The next prime is 210475537. The reversal of 210475493 is 394574012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 142874209 + 67601284 = 11953^2 + 8222^2 .

It is a cyclic number.

It is not a de Polignac number, because 210475493 - 2¹² = 210471397 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210475423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105237746 + 105237747.

It is an arithmetic number, because the mean of its divisors is an integer number (105237747).

Almost surely, 2^210475493 is an apocalyptic number.

It is an amenable number.

210475493 is a deficient number, since it is larger than the sum of its proper divisors (1).

210475493 is an equidigital number, since it uses as much as digits as its factorization.

210475493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 210475493 is about 14507.7735369698. The cubic root of 210475493 is about 594.8404750879.

The spelling of 210475493 in words is "two hundred ten million, four hundred seventy-five thousand, four hundred ninety-three".