1147104987 has 8 divisors (see below), whose sum is σ = 1747969536. Its totient is φ = 655488552.

The previous prime is 1147104919. The next prime is 1147104989. The reversal of 1147104987 is 7894017411.

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

It is not a de Polignac number, because 1147104987 - 2⁷ = 1147104859 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (1147104989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27312003 + ... + 27312044.

It is an arithmetic number, because the mean of its divisors is an integer number (218496192).

Almost surely, 2^1147104987 is an apocalyptic number.

1147104987 is a deficient number, since it is larger than the sum of its proper divisors (600864549).

1147104987 is an equidigital number, since it uses as much as digits as its factorization.

1147104987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54624057.

The product of its (nonzero) digits is 56448, while the sum is 42.

The square root of 1147104987 is about 33868.9383801737. The cubic root of 1147104987 is about 1046.8096622734.

The spelling of 1147104987 in words is "one billion, one hundred forty-seven million, one hundred four thousand, nine hundred eighty-seven".