238345273 has 2 divisors, whose sum is σ = 238345274. Its totient is φ = 238345272.

The previous prime is 238345223. The next prime is 238345279. The reversal of 238345273 is 372543832.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 140493609 + 97851664 = 11853^2 + 9892^2 .

It is a cyclic number.

It is not a de Polignac number, because 238345273 - 2⁹ = 238344761 is a prime.

It is a super-2 number, since 2×238345273² = 113616938322889058, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (238345279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119172636 + 119172637.

It is an arithmetic number, because the mean of its divisors is an integer number (119172637).

Almost surely, 2^238345273 is an apocalyptic number.

It is an amenable number.

238345273 is a deficient number, since it is larger than the sum of its proper divisors (1).

238345273 is an equidigital number, since it uses as much as digits as its factorization.

238345273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 37.

The square root of 238345273 is about 15438.4349271550. The cubic root of 238345273 is about 620.0149779594.

The spelling of 238345273 in words is "two hundred thirty-eight million, three hundred forty-five thousand, two hundred seventy-three".