38144987 has 2 divisors, whose sum is σ = 38144988. Its totient is φ = 38144986.

The previous prime is 38144929. The next prime is 38144993. The reversal of 38144987 is 78944183.

38144987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 38144987 - 2²⁴ = 21367771 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (38144087) 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, 19072493 + 19072494.

It is an arithmetic number, because the mean of its divisors is an integer number (19072494).

Almost surely, 2^38144987 is an apocalyptic number.

38144987 is a deficient number, since it is larger than the sum of its proper divisors (1).

38144987 is an equidigital number, since it uses as much as digits as its factorization.

38144987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 193536, while the sum is 44.

The square root of 38144987 is about 6176.1628054966. The cubic root of 38144987 is about 336.6245793656.

The spelling of 38144987 in words is "thirty-eight million, one hundred forty-four thousand, nine hundred eighty-seven".