38142971 has 2 divisors, whose sum is σ = 38142972. Its totient is φ = 38142970.

The previous prime is 38142961. The next prime is 38142977. The reversal of 38142971 is 17924183.

38142971 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 an emirp because it is prime and its reverse (17924183) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38142971 - 2¹⁰ = 38141947 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (38142977) 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, 19071485 + 19071486.

It is an arithmetic number, because the mean of its divisors is an integer number (19071486).

Almost surely, 2^38142971 is an apocalyptic number.

38142971 is a deficient number, since it is larger than the sum of its proper divisors (1).

38142971 is an equidigital number, since it uses as much as digits as its factorization.

38142971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 35.

The square root of 38142971 is about 6175.9995952072. Note that the first 3 decimals coincide. The cubic root of 38142971 is about 336.6186489480.

The spelling of 38142971 in words is "thirty-eight million, one hundred forty-two thousand, nine hundred seventy-one".