38112013 has 2 divisors, whose sum is σ = 38112014. Its totient is φ = 38112012.

The previous prime is 38111999. The next prime is 38112017. The reversal of 38112013 is 31021183.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38105929 + 6084 = 6173^2 + 78^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38112013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38112017) 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, 19056006 + 19056007.

It is an arithmetic number, because the mean of its divisors is an integer number (19056007).

Almost surely, 2^38112013 is an apocalyptic number.

It is an amenable number.

38112013 is a deficient number, since it is larger than the sum of its proper divisors (1).

38112013 is an equidigital number, since it uses as much as digits as its factorization.

38112013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 38112013 is about 6173.4927715192. The cubic root of 38112013 is about 336.5275543070.

Adding to 38112013 its reverse (31021183), we get a palindrome (69133196).

The spelling of 38112013 in words is "thirty-eight million, one hundred twelve thousand, thirteen".