210444141997 has 2 divisors, whose sum is σ = 210444141998. Its totient is φ = 210444141996.

The previous prime is 210444141983. The next prime is 210444142019. The reversal of 210444141997 is 799141444012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 132864624036 + 77579517961 = 364506^2 + 278531^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210444141997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210444141497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105222070998 + 105222070999.

It is an arithmetic number, because the mean of its divisors is an integer number (105222070999).

Almost surely, 2^210444141997 is an apocalyptic number.

It is an amenable number.

210444141997 is a deficient number, since it is larger than the sum of its proper divisors (1).

210444141997 is an equidigital number, since it uses as much as digits as its factorization.

210444141997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 290304, while the sum is 46.

The spelling of 210444141997 in words is "two hundred ten billion, four hundred forty-four million, one hundred forty-one thousand, nine hundred ninety-seven".