1105961 has 2 divisors, whose sum is σ = 1105962. Its totient is φ = 1105960.

The previous prime is 1105943. The next prime is 1105963. The reversal of 1105961 is 1695011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1038361 + 67600 = 1019^2 + 260^2 .

It is a cyclic number.

It is not a de Polignac number, because 1105961 - 2¹⁰ = 1104937 is a prime.

Together with 1105963, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1105963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 552980 + 552981.

It is an arithmetic number, because the mean of its divisors is an integer number (552981).

2^1105961 is an apocalyptic number.

It is an amenable number.

1105961 is a deficient number, since it is larger than the sum of its proper divisors (1).

1105961 is an equidigital number, since it uses as much as digits as its factorization.

1105961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 270, while the sum is 23.

The square root of 1105961 is about 1051.6468038272. The cubic root of 1105961 is about 103.4141430546.

The spelling of 1105961 in words is "one million, one hundred five thousand, nine hundred sixty-one".