2190187 has 6 divisors (see below), whose sum is σ = 2311908. Its totient is φ = 2074572.

The previous prime is 2190173. The next prime is 2190191. The reversal of 2190187 is 7810912.

It is not a de Polignac number, because 2190187 - 2¹⁹ = 1665899 is a prime.

It is a Duffinian number.

2190187 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2190107) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2673 + ... + 3394.

It is an arithmetic number, because the mean of its divisors is an integer number (385318).

2^2190187 is an apocalyptic number.

2190187 is a deficient number, since it is larger than the sum of its proper divisors (121721).

2190187 is an equidigital number, since it uses as much as digits as its factorization.

2190187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6105 (or 6086 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 28.

The square root of 2190187 is about 1479.9280387911. The cubic root of 2190187 is about 129.8654821571.

The spelling of 2190187 in words is "two million, one hundred ninety thousand, one hundred eighty-seven".