1601317 has 2 divisors, whose sum is σ = 1601318. Its totient is φ = 1601316.

The previous prime is 1601309. The next prime is 1601359. The reversal of 1601317 is 7131061.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1147041 + 454276 = 1071^2 + 674^2 .

It is a cyclic number.

It is not a de Polignac number, because 1601317 - 2³ = 1601309 is a prime.

It is a super-2 number, since 2×1601317² = 5128432268978, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1601294 and 1601303.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1601617) 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, 800658 + 800659.

It is an arithmetic number, because the mean of its divisors is an integer number (800659).

2^1601317 is an apocalyptic number.

It is an amenable number.

1601317 is a deficient number, since it is larger than the sum of its proper divisors (1).

1601317 is an equidigital number, since it uses as much as digits as its factorization.

1601317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 126, while the sum is 19.

The square root of 1601317 is about 1265.4315469436. The cubic root of 1601317 is about 116.9927918222.

Adding to 1601317 its reverse (7131061), we get a palindrome (8732378).

The spelling of 1601317 in words is "one million, six hundred one thousand, three hundred seventeen".