113005687 has 2 divisors, whose sum is σ = 113005688. Its totient is φ = 113005686.

The previous prime is 113005657. The next prime is 113005691. The reversal of 113005687 is 786500311.

It is a strong prime.

It is an emirp because it is prime and its reverse (786500311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 113005687 - 2¹⁹ = 112481399 is a prime.

It is a super-3 number, since 3×113005687³ (a number of 25 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113005637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56502843 + 56502844.

It is an arithmetic number, because the mean of its divisors is an integer number (56502844).

Almost surely, 2^113005687 is an apocalyptic number.

113005687 is a deficient number, since it is larger than the sum of its proper divisors (1).

113005687 is an equidigital number, since it uses as much as digits as its factorization.

113005687 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 113005687 is about 10630.4133033481. The cubic root of 113005687 is about 483.4669229889.

Adding to 113005687 its reverse (786500311), we get a palindrome (899505998).

The spelling of 113005687 in words is "one hundred thirteen million, five thousand, six hundred eighty-seven".