40123141 has 2 divisors, whose sum is σ = 40123142. Its totient is φ = 40123140.

The previous prime is 40123121. The next prime is 40123169. The reversal of 40123141 is 14132104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39955041 + 168100 = 6321^2 + 410^2 .

It is a cyclic number.

It is not a de Polignac number, because 40123141 - 2¹¹ = 40121093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40123121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20061570 + 20061571.

It is an arithmetic number, because the mean of its divisors is an integer number (20061571).

Almost surely, 2^40123141 is an apocalyptic number.

It is an amenable number.

40123141 is a deficient number, since it is larger than the sum of its proper divisors (1).

40123141 is an equidigital number, since it uses as much as digits as its factorization.

40123141 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 40123141 is about 6334.2829902050. The cubic root of 40123141 is about 342.3457767305.

Adding to 40123141 its reverse (14132104), we get a palindrome (54255245).

The spelling of 40123141 in words is "forty million, one hundred twenty-three thousand, one hundred forty-one".