1111971936 has 48 divisors (see below), whose sum is σ = 2921156784. Its totient is φ = 370374144.

The previous prime is 1111971929. The next prime is 1111971937. The reversal of 1111971936 is 6391791111.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 1111971894 and 1111971903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111971937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149686 + ... + 156938.

It is an arithmetic number, because the mean of its divisors is an integer number (60857433).

Almost surely, 2^1111971936 is an apocalyptic number.

1111971936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1111971936 is an abundant number, since it is smaller than the sum of its proper divisors (1809184848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1111971936 is a wasteful number, since it uses less digits than its factorization.

1111971936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8863 (or 8855 counting only the distinct ones).

The product of its digits is 10206, while the sum is 39.

The square root of 1111971936 is about 33346.2432066942. The cubic root of 1111971936 is about 1036.0115779131.

The spelling of 1111971936 in words is "one billion, one hundred eleven million, nine hundred seventy-one thousand, nine hundred thirty-six".