1156343112 has 24 divisors (see below), whose sum is σ = 3131762790. Its totient is φ = 385447680.

The previous prime is 1156343087. The next prime is 1156343137. The reversal of 1156343112 is 2113436511.

It is a happy number.

1156343112 is a `hidden beast` number, since 1 + 15 + 634 + 3 + 1 + 12 = 666.

It is an interprime number because it is at equal distance from previous prime (1156343087) and next prime (1156343137).

It can be written as a sum of positive squares in only one way, i.e., 1092566916 + 63776196 = 33054^2 + 7986^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8030089 + ... + 8030232.

Almost surely, 2^1156343112 is an apocalyptic number.

1156343112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1156343112 is an abundant number, since it is smaller than the sum of its proper divisors (1975419678).

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

1156343112 is a wasteful number, since it uses less digits than its factorization.

1156343112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16060333 (or 16060326 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 1156343112 is about 34005.0453903535. The cubic root of 1156343112 is about 1049.6122867862.

Adding to 1156343112 its reverse (2113436511), we get a palindrome (3269779623).

The spelling of 1156343112 in words is "one billion, one hundred fifty-six million, three hundred forty-three thousand, one hundred twelve".