238502057 has 2 divisors, whose sum is σ = 238502058. Its totient is φ = 238502056.

The previous prime is 238502053. The next prime is 238502081. The reversal of 238502057 is 750205832.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 148328041 + 90174016 = 12179^2 + 9496^2 .

It is a cyclic number.

It is not a de Polignac number, because 238502057 - 2² = 238502053 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (238502051) 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, 119251028 + 119251029.

It is an arithmetic number, because the mean of its divisors is an integer number (119251029).

Almost surely, 2^238502057 is an apocalyptic number.

It is an amenable number.

238502057 is a deficient number, since it is larger than the sum of its proper divisors (1).

238502057 is an equidigital number, since it uses as much as digits as its factorization.

238502057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 238502057 is about 15443.5118091709. The cubic root of 238502057 is about 620.1508971943.

Adding to 238502057 its reverse (750205832), we get a palindrome (988707889).

The spelling of 238502057 in words is "two hundred thirty-eight million, five hundred two thousand, fifty-seven".