113272161 has 8 divisors (see below), whose sum is σ = 151185024. Its totient is φ = 75437040.

The previous prime is 113272147. The next prime is 113272177. The reversal of 113272161 is 161272311.

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

It is not a de Polignac number, because 113272161 - 2⁹ = 113271649 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (113272111) by changing a digit.

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, 15945 + ... + 21926.

It is an arithmetic number, because the mean of its divisors is an integer number (18898128).

Almost surely, 2^113272161 is an apocalyptic number.

It is an amenable number.

113272161 is a deficient number, since it is larger than the sum of its proper divisors (37912863).

113272161 is an equidigital number, since it uses as much as digits as its factorization.

113272161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38871.

The product of its digits is 504, while the sum is 24.

The square root of 113272161 is about 10642.9394905731. The cubic root of 113272161 is about 483.8466390803.

The spelling of 113272161 in words is "one hundred thirteen million, two hundred seventy-two thousand, one hundred sixty-one".