1105613 has 2 divisors, whose sum is σ = 1105614. Its totient is φ = 1105612.

The previous prime is 1105609. The next prime is 1105619. The reversal of 1105613 is 3165011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 806404 + 299209 = 898^2 + 547^2 .

It is an emirp because it is prime and its reverse (3165011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1105613 - 2² = 1105609 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1105591 and 1105600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1105619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 552806 + 552807.

It is an arithmetic number, because the mean of its divisors is an integer number (552807).

2^1105613 is an apocalyptic number.

It is an amenable number.

1105613 is a deficient number, since it is larger than the sum of its proper divisors (1).

1105613 is an equidigital number, since it uses as much as digits as its factorization.

1105613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 1105613 is about 1051.4813360208. The cubic root of 1105613 is about 103.4032952046.

The spelling of 1105613 in words is "one million, one hundred five thousand, six hundred thirteen".