113145187 has 2 divisors, whose sum is σ = 113145188. Its totient is φ = 113145186.

The previous prime is 113145181. The next prime is 113145233. The reversal of 113145187 is 781541311.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 113145187 - 2⁷ = 113145059 is a prime.

It is not a weakly prime, because it can be changed into another prime (113145181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56572593 + 56572594.

It is an arithmetic number, because the mean of its divisors is an integer number (56572594).

Almost surely, 2^113145187 is an apocalyptic number.

113145187 is a deficient number, since it is larger than the sum of its proper divisors (1).

113145187 is an equidigital number, since it uses as much as digits as its factorization.

113145187 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3360, while the sum is 31.

The square root of 113145187 is about 10636.9726426272. The cubic root of 113145187 is about 483.6657799509.

Adding to 113145187 its reverse (781541311), we get a palindrome (894686498).

The spelling of 113145187 in words is "one hundred thirteen million, one hundred forty-five thousand, one hundred eighty-seven".