40043141 has 2 divisors, whose sum is σ = 40043142. Its totient is φ = 40043140.

The previous prime is 40043119. The next prime is 40043149. The reversal of 40043141 is 14134004.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20205025 + 19838116 = 4495^2 + 4454^2 .

It is a cyclic number.

It is not a de Polignac number, because 40043141 - 2¹⁸ = 39780997 is a prime.

It is a super-2 number, since 2×40043141² = 3206906282291762, which contains 22 as substring.

It is equal to p_2436101 and since 40043141 and 2436101 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40043149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20021570 + 20021571.

It is an arithmetic number, because the mean of its divisors is an integer number (20021571).

Almost surely, 2^40043141 is an apocalyptic number.

It is an amenable number.

40043141 is a deficient number, since it is larger than the sum of its proper divisors (1).

40043141 is an equidigital number, since it uses as much as digits as its factorization.

40043141 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 40043141 is about 6327.9649967426. The cubic root of 40043141 is about 342.1180952807.

Adding to 40043141 its reverse (14134004), we get a palindrome (54177145).

The spelling of 40043141 in words is "forty million, forty-three thousand, one hundred forty-one".