10019081 has 2 divisors, whose sum is σ = 10019082. Its totient is φ = 10019080.

The previous prime is 10019071. The next prime is 10019083. The reversal of 10019081 is 18091001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5837056 + 4182025 = 2416^2 + 2045^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10019081 is a prime.

It is a super-2 number, since 2×10019081² = 200763968169122, which contains 22 as substring.

Together with 10019083, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (10019083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5009540 + 5009541.

It is an arithmetic number, because the mean of its divisors is an integer number (5009541).

Almost surely, 2^10019081 is an apocalyptic number.

It is an amenable number.

10019081 is a deficient number, since it is larger than the sum of its proper divisors (1).

10019081 is an equidigital number, since it uses as much as digits as its factorization.

10019081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 20.

The square root of 10019081 is about 3165.2931933709. The cubic root of 10019081 is about 215.5804111680.

The spelling of 10019081 in words is "ten million, nineteen thousand, eighty-one".