113947 has 2 divisors, whose sum is σ = 113948. Its totient is φ = 113946.

The previous prime is 113933. The next prime is 113957. The reversal of 113947 is 749311.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 113947 - 2⁷ = 113819 is a prime.

It is not a weakly prime, because it can be changed into another prime (113957) 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 as a sum of consecutive naturals, namely, 56973 + 56974.

It is an arithmetic number, because the mean of its divisors is an integer number (56974).

2¹¹³⁹⁴⁷ is an apocalyptic number.

113947 is a deficient number, since it is larger than the sum of its proper divisors (1).

113947 is an equidigital number, since it uses as much as digits as its factorization.

113947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 756, while the sum is 25.

The square root of 113947 is about 337.5603649720. The cubic root of 113947 is about 48.4805604596.

The spelling of 113947 in words is "one hundred thirteen thousand, nine hundred forty-seven".