2140204067 has 4 divisors (see below), whose sum is σ = 2159144040. Its totient is φ = 2121264096.

The previous prime is 2140204063. The next prime is 2140204109. The reversal of 2140204067 is 7604020412.

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 2140204067 - 2² = 2140204063 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2140204063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9469817 + ... + 9470042.

It is an arithmetic number, because the mean of its divisors is an integer number (539786010).

Almost surely, 2^2140204067 is an apocalyptic number.

2140204067 is a deficient number, since it is larger than the sum of its proper divisors (18939973).

2140204067 is a wasteful number, since it uses less digits than its factorization.

2140204067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18939972.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 2140204067 is about 46262.3396187439. The cubic root of 2140204067 is about 1288.6997027236.

Adding to 2140204067 its reverse (7604020412), we get a palindrome (9744224479).

The spelling of 2140204067 in words is "two billion, one hundred forty million, two hundred four thousand, sixty-seven".