1601741 has 2 divisors, whose sum is σ = 1601742. Its totient is φ = 1601740.

The previous prime is 1601731. The next prime is 1601749. The reversal of 1601741 is 1471061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1464100 + 137641 = 1210^2 + 371^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1601741 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1601749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 800870 + 800871.

It is an arithmetic number, because the mean of its divisors is an integer number (800871).

2^1601741 is an apocalyptic number.

It is an amenable number.

1601741 is a deficient number, since it is larger than the sum of its proper divisors (1).

1601741 is an equidigital number, since it uses as much as digits as its factorization.

1601741 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 1601741 is about 1265.5990676356. The cubic root of 1601741 is about 117.0031167748.

The spelling of 1601741 in words is "one million, six hundred one thousand, seven hundred forty-one".