19075081 has 2 divisors, whose sum is σ = 19075082. Its totient is φ = 19075080.

The previous prime is 19075079. The next prime is 19075087. The reversal of 19075081 is 18057091.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11833600 + 7241481 = 3440^2 + 2691^2 .

It is a cyclic number.

It is not a de Polignac number, because 19075081 - 2¹ = 19075079 is a prime.

It is a super-2 number, since 2×19075081² = 727717430313122, which contains 22 as substring.

Together with 19075079, 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 (19075087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9537540 + 9537541.

It is an arithmetic number, because the mean of its divisors is an integer number (9537541).

Almost surely, 2^19075081 is an apocalyptic number.

It is an amenable number.

19075081 is a deficient number, since it is larger than the sum of its proper divisors (1).

19075081 is an equidigital number, since it uses as much as digits as its factorization.

19075081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 31.

The square root of 19075081 is about 4367.5028334278. The cubic root of 19075081 is about 267.1911875806.

The spelling of 19075081 in words is "nineteen million, seventy-five thousand, eighty-one".