4042140247 has 2 divisors, whose sum is σ = 4042140248. Its totient is φ = 4042140246.

The previous prime is 4042140239. The next prime is 4042140281. The reversal of 4042140247 is 7420412404.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4042140247 - 2³ = 4042140239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4042140287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2021070123 + 2021070124.

It is an arithmetic number, because the mean of its divisors is an integer number (2021070124).

Almost surely, 2^4042140247 is an apocalyptic number.

4042140247 is a deficient number, since it is larger than the sum of its proper divisors (1).

4042140247 is an equidigital number, since it uses as much as digits as its factorization.

4042140247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7168, while the sum is 28.

The square root of 4042140247 is about 63577.8282658349. The cubic root of 4042140247 is about 1592.9560460315.

The spelling of 4042140247 in words is "four billion, forty-two million, one hundred forty thousand, two hundred forty-seven".