210243413 has 2 divisors, whose sum is σ = 210243414. Its totient is φ = 210243412.

The previous prime is 210243409. The next prime is 210243433. The reversal of 210243413 is 314342012.

It is an a-pointer prime, because the next prime (210243433) can be obtained adding 210243413 to its sum of digits (20).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 208455844 + 1787569 = 14438^2 + 1337^2 .

It is a cyclic number.

It is not a de Polignac number, because 210243413 - 2² = 210243409 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210243433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105121706 + 105121707.

It is an arithmetic number, because the mean of its divisors is an integer number (105121707).

Almost surely, 2^210243413 is an apocalyptic number.

It is an amenable number.

210243413 is a deficient number, since it is larger than the sum of its proper divisors (1).

210243413 is an equidigital number, since it uses as much as digits as its factorization.

210243413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 210243413 is about 14499.7728602899. The cubic root of 210243413 is about 594.6217618197.

Adding to 210243413 its reverse (314342012), we get a palindrome (524585425).

The spelling of 210243413 in words is "two hundred ten million, two hundred forty-three thousand, four hundred thirteen".