5646541 has 2 divisors, whose sum is σ = 5646542. Its totient is φ = 5646540.

The previous prime is 5646539. The next prime is 5646551. The reversal of 5646541 is 1456465.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2992900 + 2653641 = 1730^2 + 1629^2 .

It is a cyclic number.

It is not a de Polignac number, because 5646541 - 2¹ = 5646539 is a prime.

Together with 5646539, it forms a pair of twin primes.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5646521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2823270 + 2823271.

It is an arithmetic number, because the mean of its divisors is an integer number (2823271).

Almost surely, 2^5646541 is an apocalyptic number.

It is an amenable number.

5646541 is a deficient number, since it is larger than the sum of its proper divisors (1).

5646541 is an equidigital number, since it uses as much as digits as its factorization.

5646541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14400, while the sum is 31.

The square root of 5646541 is about 2376.2451472859. The cubic root of 5646541 is about 178.0713954222.

The spelling of 5646541 in words is "five million, six hundred forty-six thousand, five hundred forty-one".