1105747243 has 4 divisors (see below), whose sum is σ = 1105822888. Its totient is φ = 1105671600.

The previous prime is 1105747231. The next prime is 1105747259. The reversal of 1105747243 is 3427475011.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1105747243 - 2⁵ = 1105747211 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1105747199 and 1105747208.

It is not an unprimeable number, because it can be changed into a prime (1105747273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8121 + ... + 47722.

It is an arithmetic number, because the mean of its divisors is an integer number (276455722).

Almost surely, 2^1105747243 is an apocalyptic number.

1105747243 is a deficient number, since it is larger than the sum of its proper divisors (75645).

1105747243 is an equidigital number, since it uses as much as digits as its factorization.

1105747243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75644.

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 1105747243 is about 33252.7779741783. Note that the first 3 decimals coincide. The cubic root of 1105747243 is about 1034.0748009468.

The spelling of 1105747243 in words is "one billion, one hundred five million, seven hundred forty-seven thousand, two hundred forty-three".