2188107 has 8 divisors (see below), whose sum is σ = 3241680. Its totient is φ = 1458720.

The previous prime is 2188099. The next prime is 2188111. The reversal of 2188107 is 7018812.

It is not a de Polignac number, because 2188107 - 2³ = 2188099 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 81041 = 2188107 / (2 + 1 + 8 + 8 + 1 + 0 + 7).

2188107 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2188117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40494 + ... + 40547.

It is an arithmetic number, because the mean of its divisors is an integer number (405210).

2^2188107 is an apocalyptic number.

2188107 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

2188107 is a deficient number, since it is larger than the sum of its proper divisors (1053573).

2188107 is an equidigital number, since it uses as much as digits as its factorization.

2188107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81050 (or 81044 counting only the distinct ones).

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

The square root of 2188107 is about 1479.2251349947. The cubic root of 2188107 is about 129.8243584603.

The spelling of 2188107 in words is "two million, one hundred eighty-eight thousand, one hundred seven".