45549971 has 2 divisors, whose sum is σ = 45549972. Its totient is φ = 45549970.

The previous prime is 45549853. The next prime is 45549983. The reversal of 45549971 is 17994554.

45549971 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45549971 is a prime.

It is not a weakly prime, because it can be changed into another prime (45549671) 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, 22774985 + 22774986.

It is an arithmetic number, because the mean of its divisors is an integer number (22774986).

Almost surely, 2^45549971 is an apocalyptic number.

45549971 is a deficient number, since it is larger than the sum of its proper divisors (1).

45549971 is an equidigital number, since it uses as much as digits as its factorization.

45549971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 226800, while the sum is 44.

The square root of 45549971 is about 6749.0718621156. The cubic root of 45549971 is about 357.1324953413.

The spelling of 45549971 in words is "forty-five million, five hundred forty-nine thousand, nine hundred seventy-one".