113237287 has 2 divisors, whose sum is σ = 113237288. Its totient is φ = 113237286.

The previous prime is 113237269. The next prime is 113237291. The reversal of 113237287 is 782732311.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113237287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113237227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56618643 + 56618644.

It is an arithmetic number, because the mean of its divisors is an integer number (56618644).

Almost surely, 2^113237287 is an apocalyptic number.

113237287 is a deficient number, since it is larger than the sum of its proper divisors (1).

113237287 is an equidigital number, since it uses as much as digits as its factorization.

113237287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14112, while the sum is 34.

The square root of 113237287 is about 10641.3010012874. The cubic root of 113237287 is about 483.7969787474.

Adding to 113237287 its reverse (782732311), we get a palindrome (895969598).

The spelling of 113237287 in words is "one hundred thirteen million, two hundred thirty-seven thousand, two hundred eighty-seven".