1147355663 has 4 divisors (see below), whose sum is σ = 1184367168. Its totient is φ = 1110344160.

The previous prime is 1147355639. The next prime is 1147355711. The reversal of 1147355663 is 3665537411.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1147355663 - 2¹² = 1147351567 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1147355663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1147355633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18505706 + ... + 18505767.

It is an arithmetic number, because the mean of its divisors is an integer number (296091792).

Almost surely, 2^1147355663 is an apocalyptic number.

1147355663 is a deficient number, since it is larger than the sum of its proper divisors (37011505).

1147355663 is an equidigital number, since it uses as much as digits as its factorization.

1147355663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37011504.

The product of its digits is 226800, while the sum is 41.

The square root of 1147355663 is about 33872.6388549815. The cubic root of 1147355663 is about 1046.8859095654.

The spelling of 1147355663 in words is "one billion, one hundred forty-seven million, three hundred fifty-five thousand, six hundred sixty-three".