100912073 has 2 divisors, whose sum is σ = 100912074. Its totient is φ = 100912072.

The previous prime is 100912069. The next prime is 100912081. The reversal of 100912073 is 370219001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65723449 + 35188624 = 8107^2 + 5932^2 .

It is a cyclic number.

It is not a de Polignac number, because 100912073 - 2² = 100912069 is a prime.

It is not a weakly prime, because it can be changed into another prime (100912003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50456036 + 50456037.

It is an arithmetic number, because the mean of its divisors is an integer number (50456037).

Almost surely, 2^100912073 is an apocalyptic number.

It is an amenable number.

100912073 is a deficient number, since it is larger than the sum of its proper divisors (1).

100912073 is an equidigital number, since it uses as much as digits as its factorization.

100912073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 378, while the sum is 23.

The square root of 100912073 is about 10045.5001368772. The cubic root of 100912073 is about 465.5657706623.

The spelling of 100912073 in words is "one hundred million, nine hundred twelve thousand, seventy-three".