2140087 has 8 divisors (see below), whose sum is σ = 2203200. Its totient is φ = 2077920.

The previous prime is 2140069. The next prime is 2140091. The reversal of 2140087 is 7800412.

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 2140087 - 2⁷ = 2139959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2140007) 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, 7762 + ... + 8032.

It is an arithmetic number, because the mean of its divisors is an integer number (275400).

2^2140087 is an apocalyptic number.

2140087 is a deficient number, since it is larger than the sum of its proper divisors (63113).

2140087 is a wasteful number, since it uses less digits than its factorization.

2140087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 2140087 is about 1462.9036195184. The cubic root of 2140087 is about 128.8676205438.

Adding to 2140087 its reverse (7800412), we get a palindrome (9940499).

The spelling of 2140087 in words is "two million, one hundred forty thousand, eighty-seven".