113279987 has 2 divisors, whose sum is σ = 113279988. Its totient is φ = 113279986.

The previous prime is 113279963. The next prime is 113280029. The reversal of 113279987 is 789972311.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 113279987 - 2⁶ = 113279923 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (113272987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56639993 + 56639994.

It is an arithmetic number, because the mean of its divisors is an integer number (56639994).

Almost surely, 2^113279987 is an apocalyptic number.

113279987 is a deficient number, since it is larger than the sum of its proper divisors (1).

113279987 is an equidigital number, since it uses as much as digits as its factorization.

113279987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 190512, while the sum is 47.

The square root of 113279987 is about 10643.3071458076. The cubic root of 113279987 is about 483.8577818494.

The spelling of 113279987 in words is "one hundred thirteen million, two hundred seventy-nine thousand, nine hundred eighty-seven".