45031143 has 4 divisors (see below), whose sum is σ = 60041528. Its totient is φ = 30020760.

The previous prime is 45031141. The next prime is 45031163. The reversal of 45031143 is 34113054.

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

It is not a de Polignac number, because 45031143 - 2¹ = 45031141 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 (45031141) 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, 7505188 + ... + 7505193.

It is an arithmetic number, because the mean of its divisors is an integer number (15010382).

Almost surely, 2^45031143 is an apocalyptic number.

45031143 is a deficient number, since it is larger than the sum of its proper divisors (15010385).

45031143 is a wasteful number, since it uses less digits than its factorization.

45031143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15010384.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 45031143 is about 6710.5247931887. The cubic root of 45031143 is about 355.7713651039.

Adding to 45031143 its reverse (34113054), we get a palindrome (79144197).

The spelling of 45031143 in words is "forty-five million, thirty-one thousand, one hundred forty-three".