100445274573209 has 2 divisors, whose sum is σ = 100445274573210. Its totient is φ = 100445274573208.

The previous prime is 100445274573197. The next prime is 100445274573211. The reversal of 100445274573209 is 902375472544001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 96319208635225 + 4126065937984 = 9814235^2 + 2031272^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100445274573209 is a prime.

Together with 100445274573211, 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 (100445274573289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50222637286604 + 50222637286605.

It is an arithmetic number, because the mean of its divisors is an integer number (50222637286605).

Almost surely, 2^{100445274573209} is an apocalyptic number.

It is an amenable number.

100445274573209 is a deficient number, since it is larger than the sum of its proper divisors (1).

100445274573209 is an equidigital number, since it uses as much as digits as its factorization.

100445274573209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8467200, while the sum is 53.

The spelling of 100445274573209 in words is "one hundred trillion, four hundred forty-five billion, two hundred seventy-four million, five hundred seventy-three thousand, two hundred nine".