40040141 has 2 divisors, whose sum is σ = 40040142. Its totient is φ = 40040140.

The previous prime is 40040131. The next prime is 40040153. The reversal of 40040141 is 14104004.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28622500 + 11417641 = 5350^2 + 3379^2 .

It is a cyclic number.

It is not a de Polignac number, because 40040141 - 2¹⁴ = 40023757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40040111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20020070 + 20020071.

It is an arithmetic number, because the mean of its divisors is an integer number (20020071).

Almost surely, 2^40040141 is an apocalyptic number.

It is an amenable number.

40040141 is a deficient number, since it is larger than the sum of its proper divisors (1).

40040141 is an equidigital number, since it uses as much as digits as its factorization.

40040141 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 40040141 is about 6327.7279492722. The cubic root of 40040141 is about 342.1095513296.

Adding to 40040141 its reverse (14104004), we get a palindrome (54144145).

The spelling of 40040141 in words is "forty million, forty thousand, one hundred forty-one".