5405641 has 2 divisors, whose sum is σ = 5405642. Its totient is φ = 5405640.

The previous prime is 5405599. The next prime is 5405669. The reversal of 5405641 is 1465045.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5405625 + 16 = 2325^2 + 4^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5405641 is a prime.

It is not a weakly prime, because it can be changed into another prime (5405681) 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, 2702820 + 2702821.

It is an arithmetic number, because the mean of its divisors is an integer number (2702821).

Almost surely, 2^5405641 is an apocalyptic number.

It is an amenable number.

5405641 is a deficient number, since it is larger than the sum of its proper divisors (1).

5405641 is an equidigital number, since it uses as much as digits as its factorization.

5405641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 5405641 is about 2325.0034408577. The cubic root of 5405641 is about 175.5021333442.

The spelling of 5405641 in words is "five million, four hundred five thousand, six hundred forty-one".