1105749239 has 6 divisors (see below), whose sum is σ = 1286279784. Its totient is φ = 947785020.

The previous prime is 1105749221. The next prime is 1105749247. The reversal of 1105749239 is 9329475011.

It is a de Polignac number, because none of the positive numbers 2^k-1105749239 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1105749196 and 1105749205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1105749209) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11283107 + ... + 11283204.

It is an arithmetic number, because the mean of its divisors is an integer number (214379964).

Almost surely, 2^1105749239 is an apocalyptic number.

1105749239 is a deficient number, since it is larger than the sum of its proper divisors (180530545).

1105749239 is an equidigital number, since it uses as much as digits as its factorization.

1105749239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22566325 (or 22566318 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 41.

The square root of 1105749239 is about 33252.8079866949. The cubic root of 1105749239 is about 1034.0754231541.

The spelling of 1105749239 in words is "one billion, one hundred five million, seven hundred forty-nine thousand, two hundred thirty-nine".