101680087 has 2 divisors, whose sum is σ = 101680088. Its totient is φ = 101680086.

The previous prime is 101679997. The next prime is 101680127. The reversal of 101680087 is 780086101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 101680087 - 2¹⁵ = 101647319 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101680387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50840043 + 50840044.

It is an arithmetic number, because the mean of its divisors is an integer number (50840044).

Almost surely, 2^101680087 is an apocalyptic number.

101680087 is a deficient number, since it is larger than the sum of its proper divisors (1).

101680087 is an equidigital number, since it uses as much as digits as its factorization.

101680087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 31.

The square root of 101680087 is about 10083.6544466776. The cubic root of 101680087 is about 466.7438845579.

The spelling of 101680087 in words is "one hundred one million, six hundred eighty thousand, eighty-seven".