45742547 has 2 divisors, whose sum is σ = 45742548. Its totient is φ = 45742546.

The previous prime is 45742517. The next prime is 45742589. The reversal of 45742547 is 74524754.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45742547 - 2¹⁸ = 45480403 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 45742547.

It is not a weakly prime, because it can be changed into another prime (45742507) 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, 22871273 + 22871274.

It is an arithmetic number, because the mean of its divisors is an integer number (22871274).

Almost surely, 2^45742547 is an apocalyptic number.

45742547 is a deficient number, since it is larger than the sum of its proper divisors (1).

45742547 is an equidigital number, since it uses as much as digits as its factorization.

45742547 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 156800, while the sum is 38.

The square root of 45742547 is about 6763.3236651812. The cubic root of 45742547 is about 357.6350822108.

The spelling of 45742547 in words is "forty-five million, seven hundred forty-two thousand, five hundred forty-seven".