911461609 has 2 divisors, whose sum is σ = 911461610. Its totient is φ = 911461608.

The previous prime is 911461517. The next prime is 911461627. The reversal of 911461609 is 906164119.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 555309225 + 356152384 = 23565^2 + 18872^2 .

It is a cyclic number.

It is not a de Polignac number, because 911461609 - 2²¹ = 909364457 is a prime.

It is not a weakly prime, because it can be changed into another prime (911461709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 455730804 + 455730805.

It is an arithmetic number, because the mean of its divisors is an integer number (455730805).

Almost surely, 2^911461609 is an apocalyptic number.

It is an amenable number.

911461609 is a deficient number, since it is larger than the sum of its proper divisors (1).

911461609 is an equidigital number, since it uses as much as digits as its factorization.

911461609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 37.

The square root of 911461609 is about 30190.4224713733. The cubic root of 911461609 is about 969.5706496066.

The spelling of 911461609 in words is "nine hundred eleven million, four hundred sixty-one thousand, six hundred nine".