238126013 has 2 divisors, whose sum is σ = 238126014. Its totient is φ = 238126012.

The previous prime is 238125971. The next prime is 238126033. The reversal of 238126013 is 310621832.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 188183524 + 49942489 = 13718^2 + 7067^2 .

It is a cyclic number.

It is not a de Polignac number, because 238126013 - 2¹⁴ = 238109629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (238126033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119063006 + 119063007.

It is an arithmetic number, because the mean of its divisors is an integer number (119063007).

Almost surely, 2^238126013 is an apocalyptic number.

It is an amenable number.

238126013 is a deficient number, since it is larger than the sum of its proper divisors (1).

238126013 is an equidigital number, since it uses as much as digits as its factorization.

238126013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 238126013 is about 15431.3321848763. The cubic root of 238126013 is about 619.8247970089.

Adding to 238126013 its reverse (310621832), we get a palindrome (548747845).

The spelling of 238126013 in words is "two hundred thirty-eight million, one hundred twenty-six thousand, thirteen".