38351513 has 2 divisors, whose sum is σ = 38351514. Its totient is φ = 38351512.

The previous prime is 38351503. The next prime is 38351563. The reversal of 38351513 is 31515383.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25080064 + 13271449 = 5008^2 + 3643^2 .

It is an emirp because it is prime and its reverse (31515383) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38351513 - 2⁴ = 38351497 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (38351503) 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, 19175756 + 19175757.

It is an arithmetic number, because the mean of its divisors is an integer number (19175757).

Almost surely, 2^38351513 is an apocalyptic number.

It is an amenable number.

38351513 is a deficient number, since it is larger than the sum of its proper divisors (1).

38351513 is an equidigital number, since it uses as much as digits as its factorization.

38351513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5400, while the sum is 29.

The square root of 38351513 is about 6192.8598401708. The cubic root of 38351513 is about 337.2310079804.

Adding to 38351513 its reverse (31515383), we get a palindrome (69866896).

The spelling of 38351513 in words is "thirty-eight million, three hundred fifty-one thousand, five hundred thirteen".