2142718387 has 4 divisors (see below), whose sum is σ = 2235880080. Its totient is φ = 2049556696.

The previous prime is 2142718379. The next prime is 2142718427. The reversal of 2142718387 is 7838172412.

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 2142718387 - 2³ = 2142718379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2142718327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46580812 + ... + 46580857.

It is an arithmetic number, because the mean of its divisors is an integer number (558970020).

Almost surely, 2^2142718387 is an apocalyptic number.

2142718387 is a deficient number, since it is larger than the sum of its proper divisors (93161693).

2142718387 is an equidigital number, since it uses as much as digits as its factorization.

2142718387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93161692.

The product of its digits is 150528, while the sum is 43.

The square root of 2142718387 is about 46289.5062298141. The cubic root of 2142718387 is about 1289.2041616902.

The spelling of 2142718387 in words is "two billion, one hundred forty-two million, seven hundred eighteen thousand, three hundred eighty-seven".