45609191 has 2 divisors, whose sum is σ = 45609192. Its totient is φ = 45609190.

The previous prime is 45609167. The next prime is 45609211. The reversal of 45609191 is 19190654.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 45609191 - 2¹⁸ = 45347047 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45609131) 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, 22804595 + 22804596.

It is an arithmetic number, because the mean of its divisors is an integer number (22804596).

Almost surely, 2^45609191 is an apocalyptic number.

45609191 is a deficient number, since it is larger than the sum of its proper divisors (1).

45609191 is an equidigital number, since it uses as much as digits as its factorization.

45609191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9720, while the sum is 35.

The square root of 45609191 is about 6753.4577069824. The cubic root of 45609191 is about 357.2871988973.

The spelling of 45609191 in words is "forty-five million, six hundred nine thousand, one hundred ninety-one".