45142843 has 2 divisors, whose sum is σ = 45142844. Its totient is φ = 45142842.

The previous prime is 45142829. The next prime is 45142861. The reversal of 45142843 is 34824154.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45142843 - 2²⁵ = 11588411 is a prime.

It is not a weakly prime, because it can be changed into another prime (45142873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22571421 + 22571422.

It is an arithmetic number, because the mean of its divisors is an integer number (22571422).

Almost surely, 2^45142843 is an apocalyptic number.

45142843 is a deficient number, since it is larger than the sum of its proper divisors (1).

45142843 is an equidigital number, since it uses as much as digits as its factorization.

45142843 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15360, while the sum is 31.

The square root of 45142843 is about 6718.8423854113. The cubic root of 45142843 is about 356.0652864946.

Adding to 45142843 its reverse (34824154), we get a palindrome (79966997).

The spelling of 45142843 in words is "forty-five million, one hundred forty-two thousand, eight hundred forty-three".