238073081 has 2 divisors, whose sum is σ = 238073082. Its totient is φ = 238073080.

The previous prime is 238073063. The next prime is 238073107. The reversal of 238073081 is 180370832.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 202777600 + 35295481 = 14240^2 + 5941^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-238073081 is a prime.

It is a super-2 number, since 2×238073081² = 113357583793665122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (238073041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119036540 + 119036541.

It is an arithmetic number, because the mean of its divisors is an integer number (119036541).

Almost surely, 2^238073081 is an apocalyptic number.

It is an amenable number.

238073081 is a deficient number, since it is larger than the sum of its proper divisors (1).

238073081 is an equidigital number, since it uses as much as digits as its factorization.

238073081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 238073081 is about 15429.6170075605. The cubic root of 238073081 is about 619.7788675491.

The spelling of 238073081 in words is "two hundred thirty-eight million, seventy-three thousand, eighty-one".