1165089089 has 8 divisors (see below), whose sum is σ = 1225366272. Its totient is φ = 1106230320.

The previous prime is 1165089061. The next prime is 1165089091. The reversal of 1165089089 is 9809805611.

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 1165089089 - 2²⁸ = 896653633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1165089049) 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, 352919 + ... + 356204.

It is an arithmetic number, because the mean of its divisors is an integer number (153170784).

Almost surely, 2^1165089089 is an apocalyptic number.

It is an amenable number.

1165089089 is a deficient number, since it is larger than the sum of its proper divisors (60277183).

1165089089 is an equidigital number, since it uses as much as digits as its factorization.

1165089089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 709207.

The product of its (nonzero) digits is 155520, while the sum is 47.

The square root of 1165089089 is about 34133.4013687473. The cubic root of 1165089089 is about 1052.2518832952.

The spelling of 1165089089 in words is "one billion, one hundred sixty-five million, eighty-nine thousand, eighty-nine".