112309729 has 4 divisors (see below), whose sum is σ = 128353984. Its totient is φ = 96265476.

The previous prime is 112309727. The next prime is 112309733. The reversal of 112309729 is 927903211.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 927903211 = 313 ⋅2964547.

It is a cyclic number.

It is not a de Polignac number, because 112309729 - 2¹ = 112309727 is a prime.

It is a super-2 number, since 2×112309729² = 25226950456106882, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112309694 and 112309703.

It is not an unprimeable number, because it can be changed into a prime (112309727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8022117 + ... + 8022130.

It is an arithmetic number, because the mean of its divisors is an integer number (32088496).

Almost surely, 2^112309729 is an apocalyptic number.

It is an amenable number.

112309729 is a deficient number, since it is larger than the sum of its proper divisors (16044255).

112309729 is an equidigital number, since it uses as much as digits as its factorization.

112309729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16044254.

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 112309729 is about 10597.6284611228. The cubic root of 112309729 is about 482.4723837183.

The spelling of 112309729 in words is "one hundred twelve million, three hundred nine thousand, seven hundred twenty-nine".