45517143 has 32 divisors (see below), whose sum is σ = 74718720. Its totient is φ = 24053760.

The previous prime is 45517139. The next prime is 45517183. The reversal of 45517143 is 34171554.

It is not a de Polignac number, because 45517143 - 2² = 45517139 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 45517143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45517133) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19983 + ... + 22143.

It is an arithmetic number, because the mean of its divisors is an integer number (2334960).

Almost surely, 2^45517143 is an apocalyptic number.

45517143 is a deficient number, since it is larger than the sum of its proper divisors (29201577).

45517143 is a wasteful number, since it uses less digits than its factorization.

45517143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2247.

The product of its digits is 8400, while the sum is 30.

The square root of 45517143 is about 6746.6393856497. The cubic root of 45517143 is about 357.0466792370.

Adding to 45517143 its reverse (34171554), we get a palindrome (79688697).

The spelling of 45517143 in words is "forty-five million, five hundred seventeen thousand, one hundred forty-three".