4020513139 has 2 divisors, whose sum is σ = 4020513140. Its totient is φ = 4020513138.

The previous prime is 4020513131. The next prime is 4020513149. The reversal of 4020513139 is 9313150204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4020513139 - 2³ = 4020513131 is a prime.

It is not a weakly prime, because it can be changed into another prime (4020513131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2010256569 + 2010256570.

It is an arithmetic number, because the mean of its divisors is an integer number (2010256570).

Almost surely, 2^4020513139 is an apocalyptic number.

4020513139 is a deficient number, since it is larger than the sum of its proper divisors (1).

4020513139 is an equidigital number, since it uses as much as digits as its factorization.

4020513139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 4020513139 is about 63407.5164235282. The cubic root of 4020513139 is about 1590.1099747252.

The spelling of 4020513139 in words is "four billion, twenty million, five hundred thirteen thousand, one hundred thirty-nine".