6045661 has 2 divisors, whose sum is σ = 6045662. Its totient is φ = 6045660.

The previous prime is 6045631. The next prime is 6045679. The reversal of 6045661 is 1665406.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5262436 + 783225 = 2294^2 + 885^2 .

It is a cyclic number.

It is not a de Polignac number, because 6045661 - 2¹¹ = 6043613 is a prime.

6045661 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6045631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3022830 + 3022831.

It is an arithmetic number, because the mean of its divisors is an integer number (3022831).

Almost surely, 2^6045661 is an apocalyptic number.

It is an amenable number.

6045661 is a deficient number, since it is larger than the sum of its proper divisors (1).

6045661 is an equidigital number, since it uses as much as digits as its factorization.

6045661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 6045661 is about 2458.7925898701. The cubic root of 6045661 is about 182.1718479110.

Adding to 6045661 its product of nonzero digits (4320), we get a triangular number (6049981 = T₃₄₇₈).

The spelling of 6045661 in words is "six million, forty-five thousand, six hundred sixty-one".