1601113 has 2 divisors, whose sum is σ = 1601114. Its totient is φ = 1601112.

The previous prime is 1601107. The next prime is 1601123. The reversal of 1601113 is 3111061.

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., 1373584 + 227529 = 1172^2 + 477^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1601113 is a prime.

1601113 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1601093 and 1601102.

It is not a weakly prime, because it can be changed into another prime (1601123) 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, 800556 + 800557.

It is an arithmetic number, because the mean of its divisors is an integer number (800557).

2^1601113 is an apocalyptic number.

It is an amenable number.

1601113 is a deficient number, since it is larger than the sum of its proper divisors (1).

1601113 is an equidigital number, since it uses as much as digits as its factorization.

1601113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 1601113 is about 1265.3509394630. The cubic root of 1601113 is about 116.9878235070.

Adding to 1601113 its reverse (3111061), we get a palindrome (4712174).

The spelling of 1601113 in words is "one million, six hundred one thousand, one hundred thirteen".