1113531065 has 8 divisors (see below), whose sum is σ = 1351251720. Its totient is φ = 880815232.

The previous prime is 1113531037. The next prime is 1113531073. The reversal of 1113531065 is 5601353111.

It can be written as a sum of positive squares in 4 ways, for example, as 41165056 + 1072366009 = 6416^2 + 32747^2 .

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 1113531065 - 2¹⁴ = 1113514681 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1250714 + ... + 1251603.

It is an arithmetic number, because the mean of its divisors is an integer number (168906465).

Almost surely, 2^1113531065 is an apocalyptic number.

It is an amenable number.

1113531065 is a deficient number, since it is larger than the sum of its proper divisors (237720655).

1113531065 is an equidigital number, since it uses as much as digits as its factorization.

1113531065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2502411.

The product of its (nonzero) digits is 1350, while the sum is 26.

The square root of 1113531065 is about 33369.6128985639. The cubic root of 1113531065 is about 1036.4955593544.

Adding to 1113531065 its reverse (5601353111), we get a palindrome (6714884176).

It can be divided in two parts, 111353106 and 5, that added together give a palindrome (111353111).

The spelling of 1113531065 in words is "one billion, one hundred thirteen million, five hundred thirty-one thousand, sixty-five".