210445097 has 2 divisors, whose sum is σ = 210445098. Its totient is φ = 210445096.

The previous prime is 210445093. The next prime is 210445099. The reversal of 210445097 is 790544012.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 187443481 + 23001616 = 13691^2 + 4796^2 .

It is a cyclic number.

It is not a de Polignac number, because 210445097 - 2² = 210445093 is a prime.

Together with 210445099, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (210445093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105222548 + 105222549.

It is an arithmetic number, because the mean of its divisors is an integer number (105222549).

Almost surely, 2^210445097 is an apocalyptic number.

It is an amenable number.

210445097 is a deficient number, since it is larger than the sum of its proper divisors (1).

210445097 is an equidigital number, since it uses as much as digits as its factorization.

210445097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 210445097 is about 14506.7259228263. The cubic root of 210445097 is about 594.8118389092.

The spelling of 210445097 in words is "two hundred ten million, four hundred forty-five thousand, ninety-seven".