1163321247 has 8 divisors (see below), whose sum is σ = 1692103680. Its totient is φ = 705043160.

The previous prime is 1163321239. The next prime is 1163321261. The reversal of 1163321247 is 7421233611.

It is a happy number.

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 1163321247 - 2³ = 1163321239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1163321207) 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, 17626047 + ... + 17626112.

It is an arithmetic number, because the mean of its divisors is an integer number (211512960).

Almost surely, 2^1163321247 is an apocalyptic number.

1163321247 is a deficient number, since it is larger than the sum of its proper divisors (528782433).

1163321247 is a wasteful number, since it uses less digits than its factorization.

1163321247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35252173.

The product of its digits is 6048, while the sum is 30.

The square root of 1163321247 is about 34107.4954665393. The cubic root of 1163321247 is about 1051.7194042061.

Adding to 1163321247 its reverse (7421233611), we get a palindrome (8584554858).

The spelling of 1163321247 in words is "one billion, one hundred sixty-three million, three hundred twenty-one thousand, two hundred forty-seven".