112161247 has 4 divisors (see below), whose sum is σ = 122357736. Its totient is φ = 101964760.

The previous prime is 112161229. The next prime is 112161251. The reversal of 112161247 is 742161211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 112161247 - 2¹¹ = 112159199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112161227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5098228 + ... + 5098249.

It is an arithmetic number, because the mean of its divisors is an integer number (30589434).

Almost surely, 2^112161247 is an apocalyptic number.

112161247 is a deficient number, since it is larger than the sum of its proper divisors (10196489).

112161247 is a wasteful number, since it uses less digits than its factorization.

112161247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10196488.

The product of its digits is 672, while the sum is 25.

The square root of 112161247 is about 10590.6207089103. The cubic root of 112161247 is about 482.2596682251.

The spelling of 112161247 in words is "one hundred twelve million, one hundred sixty-one thousand, two hundred forty-seven".