112750409 has 4 divisors (see below), whose sum is σ = 119382804. Its totient is φ = 106118016.

The previous prime is 112750403. The next prime is 112750411. The reversal of 112750409 is 904057211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 904057211 = 1907 ⋅474073.

It can be written as a sum of positive squares in 2 ways, for example, as 36240400 + 76510009 = 6020^2 + 8747^2 .

It is a cyclic number.

It is not a de Polignac number, because 112750409 - 2⁸ = 112750153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (112750403) 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, 3316172 + ... + 3316205.

It is an arithmetic number, because the mean of its divisors is an integer number (29845701).

Almost surely, 2^112750409 is an apocalyptic number.

It is an amenable number.

112750409 is a deficient number, since it is larger than the sum of its proper divisors (6632395).

112750409 is an equidigital number, since it uses as much as digits as its factorization.

112750409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6632394.

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 112750409 is about 10618.3995498380. The cubic root of 112750409 is about 483.1026005591.

The spelling of 112750409 in words is "one hundred twelve million, seven hundred fifty thousand, four hundred nine".