1112991745 has 8 divisors (see below), whose sum is σ = 1337478120. Its totient is φ = 889134720.

The previous prime is 1112991721. The next prime is 1112991757. The reversal of 1112991745 is 5471992111.

It can be written as a sum of positive squares in 4 ways, for example, as 232623504 + 880368241 = 15252^2 + 29671^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1112991745 - 2⁵ = 1112991713 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1112991698 and 1112991707.

It is an unprimeable number.

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, 153436 + ... + 160525.

It is an arithmetic number, because the mean of its divisors is an integer number (167184765).

Almost surely, 2^1112991745 is an apocalyptic number.

It is an amenable number.

1112991745 is a deficient number, since it is larger than the sum of its proper divisors (224486375).

1112991745 is an equidigital number, since it uses as much as digits as its factorization.

1112991745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314675.

The product of its digits is 22680, while the sum is 40.

The square root of 1112991745 is about 33361.5309151124. The cubic root of 1112991745 is about 1036.3281959478.

The spelling of 1112991745 in words is "one billion, one hundred twelve million, nine hundred ninety-one thousand, seven hundred forty-five".