45542143 has 2 divisors, whose sum is σ = 45542144. Its totient is φ = 45542142.

The previous prime is 45542141. The next prime is 45542197. The reversal of 45542143 is 34124554.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45542143 - 2¹ = 45542141 is a prime.

Together with 45542141, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45542141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22771071 + 22771072.

It is an arithmetic number, because the mean of its divisors is an integer number (22771072).

Almost surely, 2^45542143 is an apocalyptic number.

45542143 is a deficient number, since it is larger than the sum of its proper divisors (1).

45542143 is an equidigital number, since it uses as much as digits as its factorization.

45542143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9600, while the sum is 28.

The square root of 45542143 is about 6748.4919056038. The cubic root of 45542143 is about 357.1120358088.

Adding to 45542143 its reverse (34124554), we get a palindrome (79666697).

The spelling of 45542143 in words is "forty-five million, five hundred forty-two thousand, one hundred forty-three".