1375105749 has 8 divisors (see below), whose sum is σ = 1833811200. Its totient is φ = 916568736.

The previous prime is 1375105727. The next prime is 1375105751. The reversal of 1375105749 is 9475015731.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1375105749 - 2¹² = 1375101653 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1375105749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1375105799) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21637 + ... + 56730.

It is an arithmetic number, because the mean of its divisors is an integer number (229226400).

Almost surely, 2^1375105749 is an apocalyptic number.

It is an amenable number.

1375105749 is a deficient number, since it is larger than the sum of its proper divisors (458705451).

1375105749 is an equidigital number, since it uses as much as digits as its factorization.

1375105749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84219.

The product of its (nonzero) digits is 132300, while the sum is 42.

The square root of 1375105749 is about 37082.4183272882. The cubic root of 1375105749 is about 1112.0185516655.

The spelling of 1375105749 in words is "one billion, three hundred seventy-five million, one hundred five thousand, seven hundred forty-nine".