72095081 has 2 divisors, whose sum is σ = 72095082. Its totient is φ = 72095080.

The previous prime is 72095071. The next prime is 72095083. The reversal of 72095081 is 18059027.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71995225 + 99856 = 8485^2 + 316^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72095081 is a prime.

It is a super-2 number, since 2×72095081² = 10395401408793122, which contains 22 as substring.

Together with 72095083, 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 (72095083) 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, 36047540 + 36047541.

It is an arithmetic number, because the mean of its divisors is an integer number (36047541).

Almost surely, 2^72095081 is an apocalyptic number.

It is an amenable number.

72095081 is a deficient number, since it is larger than the sum of its proper divisors (1).

72095081 is an equidigital number, since it uses as much as digits as its factorization.

72095081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 72095081 is about 8490.8822274249. The cubic root of 72095081 is about 416.1998104017.

The spelling of 72095081 in words is "seventy-two million, ninety-five thousand, eighty-one".