1105223749 has 16 divisors (see below), whose sum is σ = 1372487680. Its totient is φ = 868520880.

The previous prime is 1105223747. The next prime is 1105223773. The reversal of 1105223749 is 9473225011.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1105223749 - 2¹ = 1105223747 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1105223747) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129909 + ... + 138154.

It is an arithmetic number, because the mean of its divisors is an integer number (85780480).

Almost surely, 2^1105223749 is an apocalyptic number.

1105223749 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1105223749 is a deficient number, since it is larger than the sum of its proper divisors (267263931).

1105223749 is a wasteful number, since it uses less digits than its factorization.

1105223749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268120.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 1105223749 is about 33244.9056097321. The cubic root of 1105223749 is about 1033.9115878173.

The spelling of 1105223749 in words is "one billion, one hundred five million, two hundred twenty-three thousand, seven hundred forty-nine".