40400345143 has 2 divisors, whose sum is σ = 40400345144. Its totient is φ = 40400345142.

The previous prime is 40400345131. The next prime is 40400345159. The reversal of 40400345143 is 34154300404.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40400345143 - 2⁹ = 40400344631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40400345743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20200172571 + 20200172572.

It is an arithmetic number, because the mean of its divisors is an integer number (20200172572).

Almost surely, 2^40400345143 is an apocalyptic number.

40400345143 is a deficient number, since it is larger than the sum of its proper divisors (1).

40400345143 is an equidigital number, since it uses as much as digits as its factorization.

40400345143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 28.

Adding to 40400345143 its reverse (34154300404), we get a palindrome (74554645547).

The spelling of 40400345143 in words is "forty billion, four hundred million, three hundred forty-five thousand, one hundred forty-three".