45422143 has 4 divisors (see below), whose sum is σ = 48916168. Its totient is φ = 41928120.

The previous prime is 45422101. The next prime is 45422173. The reversal of 45422143 is 34122454.

It is a happy number.

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

It is not a de Polignac number, because 45422143 - 2²⁵ = 11867711 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 (45422173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1746993 + ... + 1747018.

It is an arithmetic number, because the mean of its divisors is an integer number (12229042).

Almost surely, 2^45422143 is an apocalyptic number.

45422143 is a deficient number, since it is larger than the sum of its proper divisors (3494025).

45422143 is a wasteful number, since it uses less digits than its factorization.

45422143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3494024.

The product of its digits is 3840, while the sum is 25.

The square root of 45422143 is about 6739.5951658835. The cubic root of 45422143 is about 356.7981057859.

Adding to 45422143 its reverse (34122454), we get a palindrome (79544597).

The spelling of 45422143 in words is "forty-five million, four hundred twenty-two thousand, one hundred forty-three".