1601441 has 2 divisors, whose sum is σ = 1601442. Its totient is φ = 1601440.

The previous prime is 1601423. The next prime is 1601443. The reversal of 1601441 is 1441061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1081600 + 519841 = 1040^2 + 721^2 .

It is an emirp because it is prime and its reverse (1441061) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1601441 - 2¹⁸ = 1339297 is a prime.

It is a super-2 number, since 2×1601441² = 5129226552962, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 1601443, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1601443) by changing a digit.

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

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 800720 + 800721.

It is an arithmetic number, because the mean of its divisors is an integer number (800721).

2^1601441 is an apocalyptic number.

It is an amenable number.

1601441 is a deficient number, since it is larger than the sum of its proper divisors (1).

1601441 is an equidigital number, since it uses as much as digits as its factorization.

1601441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1601441 is about 1265.4805411384. The cubic root of 1601441 is about 116.9958115724.

The spelling of 1601441 in words is "one million, six hundred one thousand, four hundred forty-one".