40131043 has 2 divisors, whose sum is σ = 40131044. Its totient is φ = 40131042.

The previous prime is 40131029. The next prime is 40131071. The reversal of 40131043 is 34013104.

40131043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40131043 - 2⁵ = 40131011 is a prime.

It is a super-2 number, since 2×40131043² = 3221001224535698, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40131023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20065521 + 20065522.

It is an arithmetic number, because the mean of its divisors is an integer number (20065522).

Almost surely, 2^40131043 is an apocalyptic number.

40131043 is a deficient number, since it is larger than the sum of its proper divisors (1).

40131043 is an equidigital number, since it uses as much as digits as its factorization.

40131043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 40131043 is about 6334.9067080739. The cubic root of 40131043 is about 342.3682495370.

Adding to 40131043 its reverse (34013104), we get a palindrome (74144147).

The spelling of 40131043 in words is "forty million, one hundred thirty-one thousand, forty-three".