912422909 has 2 divisors, whose sum is σ = 912422910. Its totient is φ = 912422908.

The previous prime is 912422899. The next prime is 912422939. The reversal of 912422909 is 909224219.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 581292100 + 331130809 = 24110^2 + 18197^2 .

It is an emirp because it is prime and its reverse (909224219) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 912422909 - 2⁸ = 912422653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (912422939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 456211454 + 456211455.

It is an arithmetic number, because the mean of its divisors is an integer number (456211455).

Almost surely, 2^912422909 is an apocalyptic number.

It is an amenable number.

912422909 is a deficient number, since it is larger than the sum of its proper divisors (1).

912422909 is an equidigital number, since it uses as much as digits as its factorization.

912422909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 912422909 is about 30206.3388877236. The cubic root of 912422909 is about 969.9113919840.

The spelling of 912422909 in words is "nine hundred twelve million, four hundred twenty-two thousand, nine hundred nine".