187308713 has 2 divisors, whose sum is σ = 187308714. Its totient is φ = 187308712.

The previous prime is 187308701. The next prime is 187308739. The reversal of 187308713 is 317803781.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 159567424 + 27741289 = 12632^2 + 5267^2 .

It is a cyclic number.

It is not a de Polignac number, because 187308713 - 2¹⁰ = 187307689 is a prime.

It is not a weakly prime, because it can be changed into another prime (187308313) 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, 93654356 + 93654357.

It is an arithmetic number, because the mean of its divisors is an integer number (93654357).

Almost surely, 2^187308713 is an apocalyptic number.

It is an amenable number.

187308713 is a deficient number, since it is larger than the sum of its proper divisors (1).

187308713 is an equidigital number, since it uses as much as digits as its factorization.

187308713 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 187308713 is about 13686.0773415906. The cubic root of 187308713 is about 572.1624159794.

The spelling of 187308713 in words is "one hundred eighty-seven million, three hundred eight thousand, seven hundred thirteen".