45443191 has 2 divisors, whose sum is σ = 45443192. Its totient is φ = 45443190.

The previous prime is 45443173. The next prime is 45443197. The reversal of 45443191 is 19134454.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 45443191 - 2⁹ = 45442679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45443197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22721595 + 22721596.

It is an arithmetic number, because the mean of its divisors is an integer number (22721596).

Almost surely, 2^45443191 is an apocalyptic number.

45443191 is a deficient number, since it is larger than the sum of its proper divisors (1).

45443191 is an equidigital number, since it uses as much as digits as its factorization.

45443191 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 31.

The square root of 45443191 is about 6741.1565031529. The cubic root of 45443191 is about 356.8532090632.

The spelling of 45443191 in words is "forty-five million, four hundred forty-three thousand, one hundred ninety-one".