1155089792 has 32 divisors (see below), whose sum is σ = 2323523280. Its totient is φ = 571931136.

The previous prime is 1155089737. The next prime is 1155089821. The reversal of 1155089792 is 2979805511.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 30623 + ... + 56990.

Almost surely, 2^1155089792 is an apocalyptic number.

It is an amenable number.

1155089792 is an abundant number, since it is smaller than the sum of its proper divisors (1168433488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1155089792 is an equidigital number, since it uses as much as digits as its factorization.

1155089792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87730 (or 87718 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 47.

The square root of 1155089792 is about 33986.6119523556. The cubic root of 1155089792 is about 1049.2329369725.

The spelling of 1155089792 in words is "one billion, one hundred fifty-five million, eighty-nine thousand, seven hundred ninety-two".