4140641 has 2 divisors, whose sum is σ = 4140642. Its totient is φ = 4140640.

The previous prime is 4140637. The next prime is 4140683. The reversal of 4140641 is 1460414.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3500641 + 640000 = 1871^2 + 800^2 .

It is a cyclic number.

It is not a de Polignac number, because 4140641 - 2² = 4140637 is a prime.

It is not a weakly prime, because it can be changed into another prime (4140611) 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, 2070320 + 2070321.

It is an arithmetic number, because the mean of its divisors is an integer number (2070321).

Almost surely, 2^4140641 is an apocalyptic number.

It is an amenable number.

4140641 is a deficient number, since it is larger than the sum of its proper divisors (1).

4140641 is an equidigital number, since it uses as much as digits as its factorization.

4140641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 4140641 is about 2034.8565059974. The cubic root of 4140641 is about 160.5791640476.

The spelling of 4140641 in words is "four million, one hundred forty thousand, six hundred forty-one".