2440144139 has 2 divisors, whose sum is σ = 2440144140. Its totient is φ = 2440144138.

The previous prime is 2440144123. The next prime is 2440144153. The reversal of 2440144139 is 9314410442.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2440144139 - 2⁴ = 2440144123 is a prime.

It is not a weakly prime, because it can be changed into another prime (2440144159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1220072069 + 1220072070.

It is an arithmetic number, because the mean of its divisors is an integer number (1220072070).

Almost surely, 2^2440144139 is an apocalyptic number.

2440144139 is a deficient number, since it is larger than the sum of its proper divisors (1).

2440144139 is an equidigital number, since it uses as much as digits as its factorization.

2440144139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 2440144139 is about 49397.8151237481. The cubic root of 2440144139 is about 1346.2896083596.

The spelling of 2440144139 in words is "two billion, four hundred forty million, one hundred forty-four thousand, one hundred thirty-nine".