45705143 has 4 divisors (see below), whose sum is σ = 49860168. Its totient is φ = 41550120.

The previous prime is 45705113. The next prime is 45705151. The reversal of 45705143 is 34150754.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 45705143 - 2¹⁴ = 45688759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45705113) 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 in 3 ways as a sum of consecutive naturals, for example, 2077496 + ... + 2077517.

It is an arithmetic number, because the mean of its divisors is an integer number (12465042).

Almost surely, 2^45705143 is an apocalyptic number.

45705143 is a deficient number, since it is larger than the sum of its proper divisors (4155025).

45705143 is a wasteful number, since it uses less digits than its factorization.

45705143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4155024.

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 45705143 is about 6760.5578911803. The cubic root of 45705143 is about 357.5375753942.

Adding to 45705143 its reverse (34150754), we get a palindrome (79855897).

The spelling of 45705143 in words is "forty-five million, seven hundred five thousand, one hundred forty-three".