1105581803 has 2 divisors, whose sum is σ = 1105581804. Its totient is φ = 1105581802.

The previous prime is 1105581787. The next prime is 1105581811. The reversal of 1105581803 is 3081855011.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1105581803 - 2⁴ = 1105581787 is a prime.

It is a super-2 number, since 2×1105581803² = 2444622246249461618, which contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1105581803.

It is not a weakly prime, because it can be changed into another prime (1105581833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 552790901 + 552790902.

It is an arithmetic number, because the mean of its divisors is an integer number (552790902).

Almost surely, 2^1105581803 is an apocalyptic number.

1105581803 is a deficient number, since it is larger than the sum of its proper divisors (1).

1105581803 is an equidigital number, since it uses as much as digits as its factorization.

1105581803 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4800, while the sum is 32.

The square root of 1105581803 is about 33250.2902694097. The cubic root of 1105581803 is about 1034.0232262104.

The spelling of 1105581803 in words is "one billion, one hundred five million, five hundred eighty-one thousand, eight hundred three".