1115137693 has 16 divisors (see below), whose sum is σ = 1149120000. Its totient is φ = 1081821312.

The previous prime is 1115137679. The next prime is 1115137697. The reversal of 1115137693 is 3967315111.

It is a de Polignac number, because none of the positive numbers 2^k-1115137693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115137697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1398771 + ... + 1399567.

It is an arithmetic number, because the mean of its divisors is an integer number (71820000).

Almost surely, 2^1115137693 is an apocalyptic number.

It is an amenable number.

1115137693 is a deficient number, since it is larger than the sum of its proper divisors (33982307).

1115137693 is an equidigital number, since it uses as much as digits as its factorization.

1115137693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1164.

The product of its digits is 17010, while the sum is 37.

The square root of 1115137693 is about 33393.6774404976. The cubic root of 1115137693 is about 1036.9938129395.

The spelling of 1115137693 in words is "one billion, one hundred fifteen million, one hundred thirty-seven thousand, six hundred ninety-three".