4136839081 has 2 divisors, whose sum is σ = 4136839082. Its totient is φ = 4136839080.

The previous prime is 4136839073. The next prime is 4136839093. The reversal of 4136839081 is 1809386314.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2216997225 + 1919841856 = 47085^2 + 43816^2 .

It is a cyclic number.

It is not a de Polignac number, because 4136839081 - 2³ = 4136839073 is a prime.

It is a super-2 number, since 2×4136839081² = 34226875164177849122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4136839061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2068419540 + 2068419541.

It is an arithmetic number, because the mean of its divisors is an integer number (2068419541).

Almost surely, 2^4136839081 is an apocalyptic number.

It is an amenable number.

4136839081 is a deficient number, since it is larger than the sum of its proper divisors (1).

4136839081 is an equidigital number, since it uses as much as digits as its factorization.

4136839081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 124416, while the sum is 43.

The square root of 4136839081 is about 64318.2639768830. The cubic root of 4136839081 is about 1605.3000129509.

The spelling of 4136839081 in words is "four billion, one hundred thirty-six million, eight hundred thirty-nine thousand, eighty-one".