2140071 has 4 divisors (see below), whose sum is σ = 2853432. Its totient is φ = 1426712.

The previous prime is 2140069. The next prime is 2140091. The reversal of 2140071 is 1700412.

2140071 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 2140071 - 2¹ = 2140069 is a prime.

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 2140071.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2140001) 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, 356676 + ... + 356681.

It is an arithmetic number, because the mean of its divisors is an integer number (713358).

2^2140071 is an apocalyptic number.

2140071 is a deficient number, since it is larger than the sum of its proper divisors (713361).

2140071 is an equidigital number, since it uses as much as digits as its factorization.

2140071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 713360.

The product of its (nonzero) digits is 56, while the sum is 15.

The square root of 2140071 is about 1462.8981509319. The cubic root of 2140071 is about 128.8672993906.

Adding to 2140071 its reverse (1700412), we get a palindrome (3840483).

The spelling of 2140071 in words is "two million, one hundred forty thousand, seventy-one".