4278013139 has 2 divisors, whose sum is σ = 4278013140. Its totient is φ = 4278013138.

The previous prime is 4278013081. The next prime is 4278013193. The reversal of 4278013139 is 9313108724.

Together with next prime (4278013193) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4278013139 - 2⁸ = 4278012883 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (4278013199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2139006569 + 2139006570.

It is an arithmetic number, because the mean of its divisors is an integer number (2139006570).

Almost surely, 2^4278013139 is an apocalyptic number.

4278013139 is a deficient number, since it is larger than the sum of its proper divisors (1).

4278013139 is an equidigital number, since it uses as much as digits as its factorization.

4278013139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 4278013139 is about 65406.5221442021. The cubic root of 4278013139 is about 1623.3569999047.

The spelling of 4278013139 in words is "four billion, two hundred seventy-eight million, thirteen thousand, one hundred thirty-nine".