113489287 has 2 divisors, whose sum is σ = 113489288. Its totient is φ = 113489286.

The previous prime is 113489281. The next prime is 113489309. The reversal of 113489287 is 782984311.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113489287 is a prime.

It is a super-3 number, since 3×113489287³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113489281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56744643 + 56744644.

It is an arithmetic number, because the mean of its divisors is an integer number (56744644).

Almost surely, 2^113489287 is an apocalyptic number.

113489287 is a deficient number, since it is larger than the sum of its proper divisors (1).

113489287 is an equidigital number, since it uses as much as digits as its factorization.

113489287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96768, while the sum is 43.

The square root of 113489287 is about 10653.1350784640. The cubic root of 113489287 is about 484.1555959338.

The spelling of 113489287 in words is "one hundred thirteen million, four hundred eighty-nine thousand, two hundred eighty-seven".