2430139 has 2 divisors, whose sum is σ = 2430140. Its totient is φ = 2430138.

The previous prime is 2430091. The next prime is 2430149. The reversal of 2430139 is 9310342.

2430139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2430139 - 2⁷ = 2430011 is a prime.

It is not a weakly prime, because it can be changed into another prime (2430149) 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 as a sum of consecutive naturals, namely, 1215069 + 1215070.

It is an arithmetic number, because the mean of its divisors is an integer number (1215070).

2^2430139 is an apocalyptic number.

2430139 is a deficient number, since it is larger than the sum of its proper divisors (1).

2430139 is an equidigital number, since it uses as much as digits as its factorization.

2430139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 2430139 is about 1558.8903104452. The cubic root of 2430139 is about 134.4447057851. Note that the first 3 decimals are identical.

The spelling of 2430139 in words is "two million, four hundred thirty thousand, one hundred thirty-nine".