2142087 has 4 divisors (see below), whose sum is σ = 2856120. Its totient is φ = 1428056.

The previous prime is 2142083. The next prime is 2142097. The reversal of 2142087 is 7802412.

2142087 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2142087 - 2² = 2142083 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 357012 + ... + 357017.

It is an arithmetic number, because the mean of its divisors is an integer number (714030).

2^2142087 is an apocalyptic number.

2142087 is a deficient number, since it is larger than the sum of its proper divisors (714033).

2142087 is an equidigital number, since it uses as much as digits as its factorization.

2142087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714032.

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 2142087 is about 1463.5870319185. The cubic root of 2142087 is about 128.9077520890.

Adding to 2142087 its reverse (7802412), we get a palindrome (9944499).

The spelling of 2142087 in words is "two million, one hundred forty-two thousand, eighty-seven".