1105440019 has 2 divisors, whose sum is σ = 1105440020. Its totient is φ = 1105440018.

The previous prime is 1105440013. The next prime is 1105440041. The reversal of 1105440019 is 9100445011.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1105440019 - 2⁷ = 1105439891 is a prime.

It is a super-2 number, since 2×1105440019² = 2443995271213440722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1105439975 and 1105440002.

It is not a weakly prime, because it can be changed into another prime (1105440013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 552720009 + 552720010.

It is an arithmetic number, because the mean of its divisors is an integer number (552720010).

Almost surely, 2^1105440019 is an apocalyptic number.

1105440019 is a deficient number, since it is larger than the sum of its proper divisors (1).

1105440019 is an equidigital number, since it uses as much as digits as its factorization.

1105440019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 1105440019 is about 33248.1581294363. The cubic root of 1105440019 is about 1033.9790219684.

The spelling of 1105440019 in words is "one billion, one hundred five million, four hundred forty thousand, nineteen".