45312143 has 2 divisors, whose sum is σ = 45312144. Its totient is φ = 45312142.

The previous prime is 45312133. The next prime is 45312149. The reversal of 45312143 is 34121354.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 45312143 - 2⁶ = 45312079 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45312149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22656071 + 22656072.

It is an arithmetic number, because the mean of its divisors is an integer number (22656072).

Almost surely, 2^45312143 is an apocalyptic number.

45312143 is a deficient number, since it is larger than the sum of its proper divisors (1).

45312143 is an equidigital number, since it uses as much as digits as its factorization.

45312143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1440, while the sum is 23.

The square root of 45312143 is about 6731.4294915716. The cubic root of 45312143 is about 356.5098505121.

Adding to 45312143 its reverse (34121354), we get a palindrome (79433497).

The spelling of 45312143 in words is "forty-five million, three hundred twelve thousand, one hundred forty-three".