38913143 has 2 divisors, whose sum is σ = 38913144. Its totient is φ = 38913142.

The previous prime is 38913137. The next prime is 38913167. The reversal of 38913143 is 34131983.

It is a happy number.

38913143 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 is an emirp because it is prime and its reverse (34131983) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38913143 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38913103) 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, 19456571 + 19456572.

It is an arithmetic number, because the mean of its divisors is an integer number (19456572).

Almost surely, 2^38913143 is an apocalyptic number.

38913143 is a deficient number, since it is larger than the sum of its proper divisors (1).

38913143 is an equidigital number, since it uses as much as digits as its factorization.

38913143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 32.

The square root of 38913143 is about 6238.0399966656. The cubic root of 38913143 is about 338.8692046536.

The spelling of 38913143 in words is "thirty-eight million, nine hundred thirteen thousand, one hundred forty-three".