100216973 has 2 divisors, whose sum is σ = 100216974. Its totient is φ = 100216972.

The previous prime is 100216967. The next prime is 100216993. The reversal of 100216973 is 379612001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74684164 + 25532809 = 8642^2 + 5053^2 .

It is a cyclic number.

It is not a de Polignac number, because 100216973 - 2¹⁰ = 100215949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100216913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50108486 + 50108487.

It is an arithmetic number, because the mean of its divisors is an integer number (50108487).

Almost surely, 2^100216973 is an apocalyptic number.

It is an amenable number.

100216973 is a deficient number, since it is larger than the sum of its proper divisors (1).

100216973 is an equidigital number, since it uses as much as digits as its factorization.

100216973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 100216973 is about 10010.8427717151. The cubic root of 100216973 is about 464.4943406789.

Adding to 100216973 its reverse (379612001), we get a palindrome (479828974).

The spelling of 100216973 in words is "one hundred million, two hundred sixteen thousand, nine hundred seventy-three".