113272081 has 6 divisors (see below), whose sum is σ = 122655750. Its totient is φ = 104558688.

The previous prime is 113272067. The next prime is 113272099. The reversal of 113272081 is 180272311.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 13571856 + 99700225 = 3684^2 + 9985^2 .

It is not a de Polignac number, because 113272081 - 2⁷ = 113271953 is a prime.

It is a super-2 number, since 2×113272081² = 25661128668141122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113272781) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 334956 + ... + 335293.

It is an arithmetic number, because the mean of its divisors is an integer number (20442625).

Almost surely, 2^113272081 is an apocalyptic number.

It is an amenable number.

113272081 is a deficient number, since it is larger than the sum of its proper divisors (9383669).

113272081 is an equidigital number, since it uses as much as digits as its factorization.

113272081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670275 (or 670262 counting only the distinct ones).

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

The square root of 113272081 is about 10642.9357322122. The cubic root of 113272081 is about 483.8465251725.

The spelling of 113272081 in words is "one hundred thirteen million, two hundred seventy-two thousand, eighty-one".