1112543969 has 2 divisors, whose sum is σ = 1112543970. Its totient is φ = 1112543968.

The previous prime is 1112543963. The next prime is 1112544001. The reversal of 1112543969 is 9693452111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 845646400 + 266897569 = 29080^2 + 16337^2 .

It is a cyclic number.

It is not a de Polignac number, because 1112543969 - 2²⁰ = 1111495393 is a prime.

It is a super-2 number, since 2×1112543969² = 2475508165916545922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1112543963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556271984 + 556271985.

It is an arithmetic number, because the mean of its divisors is an integer number (556271985).

Almost surely, 2^1112543969 is an apocalyptic number.

It is an amenable number.

1112543969 is a deficient number, since it is larger than the sum of its proper divisors (1).

1112543969 is an equidigital number, since it uses as much as digits as its factorization.

1112543969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 58320, while the sum is 41.

The square root of 1112543969 is about 33354.8192769801. The cubic root of 1112543969 is about 1036.1891996671.

The spelling of 1112543969 in words is "one billion, one hundred twelve million, five hundred forty-three thousand, nine hundred sixty-nine".