238242497 has 2 divisors, whose sum is σ = 238242498. Its totient is φ = 238242496.

The previous prime is 238242493. The next prime is 238242503. The reversal of 238242497 is 794242832.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 238115761 + 126736 = 15431^2 + 356^2 .

It is a cyclic number.

It is not a de Polignac number, because 238242497 - 2² = 238242493 is a prime.

It is not a weakly prime, because it can be changed into another prime (238242491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119121248 + 119121249.

It is an arithmetic number, because the mean of its divisors is an integer number (119121249).

Almost surely, 2^238242497 is an apocalyptic number.

It is an amenable number.

238242497 is a deficient number, since it is larger than the sum of its proper divisors (1).

238242497 is an equidigital number, since it uses as much as digits as its factorization.

238242497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 193536, while the sum is 41.

The square root of 238242497 is about 15435.1059925094. The cubic root of 238242497 is about 619.9258470108.

The spelling of 238242497 in words is "two hundred thirty-eight million, two hundred forty-two thousand, four hundred ninety-seven".