101685087 has 24 divisors (see below), whose sum is σ = 169994240. Its totient is φ = 57367440.

The previous prime is 101685071. The next prime is 101685091. The reversal of 101685087 is 780586101.

It is not a de Polignac number, because 101685087 - 2⁴ = 101685071 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101685037) 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 in 23 ways as a sum of consecutive naturals, for example, 5239 + ... + 15192.

Almost surely, 2^101685087 is an apocalyptic number.

101685087 is a deficient number, since it is larger than the sum of its proper divisors (68309153).

101685087 is a wasteful number, since it uses less digits than its factorization.

101685087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20523 (or 20520 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 36.

The square root of 101685087 is about 10083.9023696186. The cubic root of 101685087 is about 466.7515349617.

The spelling of 101685087 in words is "one hundred one million, six hundred eighty-five thousand, eighty-seven".