4009141 has 2 divisors, whose sum is σ = 4009142. Its totient is φ = 4009140.

The previous prime is 4009139. The next prime is 4009151. The reversal of 4009141 is 1419004.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2090916 + 1918225 = 1446^2 + 1385^2 .

It is a cyclic number.

It is not a de Polignac number, because 4009141 - 2¹ = 4009139 is a prime.

Together with 4009139, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4009151) 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, 2004570 + 2004571.

It is an arithmetic number, because the mean of its divisors is an integer number (2004571).

Almost surely, 2^4009141 is an apocalyptic number.

It is an amenable number.

4009141 is a deficient number, since it is larger than the sum of its proper divisors (1).

4009141 is an equidigital number, since it uses as much as digits as its factorization.

4009141 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 19.

The square root of 4009141 is about 2002.2839458978. The cubic root of 4009141 is about 158.8609334777.

The spelling of 4009141 in words is "four million, nine thousand, one hundred forty-one".