2188015 has 8 divisors (see below), whose sum is σ = 2670480. Its totient is φ = 1720512.

The previous prime is 2188001. The next prime is 2188031. The reversal of 2188015 is 5108812.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2188015 - 2¹³ = 2179823 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3414 + ... + 4003.

It is an arithmetic number, because the mean of its divisors is an integer number (333810).

2^2188015 is an apocalyptic number.

2188015 is a deficient number, since it is larger than the sum of its proper divisors (482465).

2188015 is an equidigital number, since it uses as much as digits as its factorization.

2188015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7481.

The product of its (nonzero) digits is 640, while the sum is 25.

The square root of 2188015 is about 1479.1940373055. The cubic root of 2188015 is about 129.8225389258.

The spelling of 2188015 in words is "two million, one hundred eighty-eight thousand, fifteen".