45320143 has 16 divisors (see below), whose sum is σ = 51858432. Its totient is φ = 39204000.

The previous prime is 45320137. The next prime is 45320161. The reversal of 45320143 is 34102354.

It is not a de Polignac number, because 45320143 - 2¹⁷ = 45189071 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 (45320123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68233 + ... + 68893.

It is an arithmetic number, because the mean of its divisors is an integer number (3241152).

Almost surely, 2^45320143 is an apocalyptic number.

45320143 is a deficient number, since it is larger than the sum of its proper divisors (6538289).

45320143 is a wasteful number, since it uses less digits than its factorization.

45320143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 966.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 45320143 is about 6732.0236927688. The cubic root of 45320143 is about 356.5308302523.

Adding to 45320143 its reverse (34102354), we get a palindrome (79422497).

The spelling of 45320143 in words is "forty-five million, three hundred twenty thousand, one hundred forty-three".