1155170089 has 8 divisors (see below), whose sum is σ = 1180229760. Its totient is φ = 1130130576.

The previous prime is 1155170063. The next prime is 1155170123. The reversal of 1155170089 is 9800715511.

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 1155170089 - 2¹⁹ = 1154645801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1155170389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197002 + ... + 202780.

It is an arithmetic number, because the mean of its divisors is an integer number (147528720).

Almost surely, 2^1155170089 is an apocalyptic number.

It is an amenable number.

1155170089 is a deficient number, since it is larger than the sum of its proper divisors (25059671).

1155170089 is an equidigital number, since it uses as much as digits as its factorization.

1155170089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10079.

The product of its (nonzero) digits is 12600, while the sum is 37.

The square root of 1155170089 is about 33987.7932352190. The cubic root of 1155170089 is about 1049.2572491675.

The spelling of 1155170089 in words is "one billion, one hundred fifty-five million, one hundred seventy thousand, eighty-nine".