38238143 has 2 divisors, whose sum is σ = 38238144. Its totient is φ = 38238142.

The previous prime is 38238139. The next prime is 38238163. The reversal of 38238143 is 34183283.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (34183283) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38238143 - 2² = 38238139 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38238103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19119071 + 19119072.

It is an arithmetic number, because the mean of its divisors is an integer number (19119072).

Almost surely, 2^38238143 is an apocalyptic number.

38238143 is a deficient number, since it is larger than the sum of its proper divisors (1).

38238143 is an equidigital number, since it uses as much as digits as its factorization.

38238143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13824, while the sum is 32.

The square root of 38238143 is about 6183.6997824927. The cubic root of 38238143 is about 336.8983864792.

The spelling of 38238143 in words is "thirty-eight million, two hundred thirty-eight thousand, one hundred forty-three".