1105997 has 2 divisors, whose sum is σ = 1105998. Its totient is φ = 1105996.

The previous prime is 1105963. The next prime is 1105999. The reversal of 1105997 is 7995011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1094116 + 11881 = 1046^2 + 109^2 .

It is an emirp because it is prime and its reverse (7995011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1105997 - 2¹² = 1101901 is a prime.

Together with 1105999, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1105999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 552998 + 552999.

It is an arithmetic number, because the mean of its divisors is an integer number (552999).

2^1105997 is an apocalyptic number.

It is an amenable number.

1105997 is a deficient number, since it is larger than the sum of its proper divisors (1).

1105997 is an equidigital number, since it uses as much as digits as its factorization.

1105997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2835, while the sum is 32.

The square root of 1105997 is about 1051.6639197006. The cubic root of 1105997 is about 103.4152651161.

The spelling of 1105997 in words is "one million, one hundred five thousand, nine hundred ninety-seven".