1089566741 has 4 divisors (see below), whose sum is σ = 1136939232. Its totient is φ = 1042194252.

The previous prime is 1089566719. The next prime is 1089566789. The reversal of 1089566741 is 1476659801.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1089566741 - 2³⁰ = 15824917 is a prime.

It is a super-2 number, since 2×1089566741² = 2374311366186722162, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1089566701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23686211 + ... + 23686256.

It is an arithmetic number, because the mean of its divisors is an integer number (284234808).

Almost surely, 2^1089566741 is an apocalyptic number.

It is an amenable number.

1089566741 is a deficient number, since it is larger than the sum of its proper divisors (47372491).

1089566741 is an equidigital number, since it uses as much as digits as its factorization.

1089566741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47372490.

The product of its (nonzero) digits is 362880, while the sum is 47.

The square root of 1089566741 is about 33008.5858679223. The cubic root of 1089566741 is about 1029.0060921597.

The spelling of 1089566741 in words is "one billion, eighty-nine million, five hundred sixty-six thousand, seven hundred forty-one".