38128249 has 2 divisors, whose sum is σ = 38128250. Its totient is φ = 38128248.

The previous prime is 38128217. The next prime is 38128303. The reversal of 38128249 is 94282183.

38128249 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28015849 + 10112400 = 5293^2 + 3180^2 .

It is a cyclic number.

It is not a de Polignac number, because 38128249 - 2⁵ = 38128217 is a prime.

It is not a weakly prime, because it can be changed into another prime (38125249) 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, 19064124 + 19064125.

It is an arithmetic number, because the mean of its divisors is an integer number (19064125).

Almost surely, 2^38128249 is an apocalyptic number.

It is an amenable number.

38128249 is a deficient number, since it is larger than the sum of its proper divisors (1).

38128249 is an equidigital number, since it uses as much as digits as its factorization.

38128249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27648, while the sum is 37.

The square root of 38128249 is about 6174.8076083389. The cubic root of 38128249 is about 336.5753352667.

The spelling of 38128249 in words is "thirty-eight million, one hundred twenty-eight thousand, two hundred forty-nine".