1116531647 has 16 divisors (see below), whose sum is σ = 1429665792. Its totient is φ = 846508320.

The previous prime is 1116531641. The next prime is 1116531667. The reversal of 1116531647 is 7461356111.

It is not a de Polignac number, because 1116531647 - 2⁴ = 1116531631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1116531641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 193103 + ... + 198800.

It is an arithmetic number, because the mean of its divisors is an integer number (89354112).

Almost surely, 2^1116531647 is an apocalyptic number.

1116531647 is a deficient number, since it is larger than the sum of its proper divisors (313134145).

1116531647 is a wasteful number, since it uses less digits than its factorization.

1116531647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391958.

The product of its digits is 15120, while the sum is 35.

The square root of 1116531647 is about 33414.5424478624. The cubic root of 1116531647 is about 1037.4257236611.

Adding to 1116531647 its reverse (7461356111), we get a palindrome (8577887758).

The spelling of 1116531647 in words is "one billion, one hundred sixteen million, five hundred thirty-one thousand, six hundred forty-seven".