1089759745 has 8 divisors (see below), whose sum is σ = 1313577216. Its totient is φ = 867897456.

The previous prime is 1089759743. The next prime is 1089759751. The reversal of 1089759745 is 5479579801.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1089759745 - 2¹ = 1089759743 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1089759743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 487567 + ... + 489796.

It is an arithmetic number, because the mean of its divisors is an integer number (164197152).

Almost surely, 2^1089759745 is an apocalyptic number.

It is an amenable number.

1089759745 is a deficient number, since it is larger than the sum of its proper divisors (223817471).

1089759745 is an equidigital number, since it uses as much as digits as its factorization.

1089759745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 977591.

The product of its (nonzero) digits is 3175200, while the sum is 55.

The square root of 1089759745 is about 33011.5092808554. The cubic root of 1089759745 is about 1029.0668473690.

The spelling of 1089759745 in words is "one billion, eighty-nine million, seven hundred fifty-nine thousand, seven hundred forty-five".