12100887 has 16 divisors (see below), whose sum is σ = 18413280. Its totient is φ = 7848576.

The previous prime is 12100873. The next prime is 12100901. The reversal of 12100887 is 78800121.

12100887 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12100873) and next prime (12100901).

It is not a de Polignac number, because 12100887 - 2⁴ = 12100871 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 12100887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12100807) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5058 + ... + 7055.

It is an arithmetic number, because the mean of its divisors is an integer number (1150830).

Almost surely, 2^12100887 is an apocalyptic number.

12100887 is a deficient number, since it is larger than the sum of its proper divisors (6312393).

12100887 is a wasteful number, since it uses less digits than its factorization.

12100887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12159 (or 12153 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 27.

The square root of 12100887 is about 3478.6329211344. The cubic root of 12100887 is about 229.5826521046.

The spelling of 12100887 in words is "twelve million, one hundred thousand, eight hundred eighty-seven".