4999081 has 2 divisors, whose sum is σ = 4999082. Its totient is φ = 4999080.

The previous prime is 4999031. The next prime is 4999087. The reversal of 4999081 is 1809994.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2624400 + 2374681 = 1620^2 + 1541^2 .

It is a cyclic number.

It is not a de Polignac number, because 4999081 - 2⁹ = 4998569 is a prime.

It is a super-2 number, since 2×4999081² = 49981621689122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4999087) 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, 2499540 + 2499541.

It is an arithmetic number, because the mean of its divisors is an integer number (2499541).

Almost surely, 2^4999081 is an apocalyptic number.

It is an amenable number.

4999081 is a deficient number, since it is larger than the sum of its proper divisors (1).

4999081 is an equidigital number, since it uses as much as digits as its factorization.

4999081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 40.

The square root of 4999081 is about 2235.8624734093. The cubic root of 4999081 is about 170.9871175731.

The spelling of 4999081 in words is "four million, nine hundred ninety-nine thousand, eighty-one".