4020513149 has 2 divisors, whose sum is σ = 4020513150. Its totient is φ = 4020513148.

The previous prime is 4020513139. The next prime is 4020513157. The reversal of 4020513149 is 9413150204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3735409924 + 285103225 = 61118^2 + 16885^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4020513149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4020513139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2010256574 + 2010256575.

It is an arithmetic number, because the mean of its divisors is an integer number (2010256575).

Almost surely, 2^4020513149 is an apocalyptic number.

It is an amenable number.

4020513149 is a deficient number, since it is larger than the sum of its proper divisors (1).

4020513149 is an equidigital number, since it uses as much as digits as its factorization.

4020513149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 4020513149 is about 63407.5165023832. The cubic root of 4020513149 is about 1590.1099760435.

The spelling of 4020513149 in words is "four billion, twenty million, five hundred thirteen thousand, one hundred forty-nine".