45909547 has 2 divisors, whose sum is σ = 45909548. Its totient is φ = 45909546.

The previous prime is 45909517. The next prime is 45909551. The reversal of 45909547 is 74590954.

It is a happy number.

45909547 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 not a de Polignac number, because 45909547 - 2²³ = 37520939 is a prime.

It is equal to p_2769946 and since 45909547 and 2769946 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (45909517) 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, 22954773 + 22954774.

It is an arithmetic number, because the mean of its divisors is an integer number (22954774).

Almost surely, 2^45909547 is an apocalyptic number.

45909547 is a deficient number, since it is larger than the sum of its proper divisors (1).

45909547 is an equidigital number, since it uses as much as digits as its factorization.

45909547 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 226800, while the sum is 43.

The square root of 45909547 is about 6775.6584181908. The cubic root of 45909547 is about 358.0697797877.

The spelling of 45909547 in words is "forty-five million, nine hundred nine thousand, five hundred forty-seven".