238072073 has 2 divisors, whose sum is σ = 238072074. Its totient is φ = 238072072.

The previous prime is 238072013. The next prime is 238072181. The reversal of 238072073 is 370270832.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 169728784 + 68343289 = 13028^2 + 8267^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-238072073 is a prime.

It is equal to p_13061678 and since 238072073 and 13061678 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (238072013) 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, 119036036 + 119036037.

It is an arithmetic number, because the mean of its divisors is an integer number (119036037).

Almost surely, 2^238072073 is an apocalyptic number.

It is an amenable number.

238072073 is a deficient number, since it is larger than the sum of its proper divisors (1).

238072073 is an equidigital number, since it uses as much as digits as its factorization.

238072073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 238072073 is about 15429.5843430729. The cubic root of 238072073 is about 619.7779928345. Note that the first 3 decimals are identical.

The spelling of 238072073 in words is "two hundred thirty-eight million, seventy-two thousand, seventy-three".