38643141 has 4 divisors (see below), whose sum is σ = 51524192. Its totient is φ = 25762092.

The previous prime is 38643139. The next prime is 38643149. The reversal of 38643141 is 14134683.

38643141 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14134683 = 3 ⋅4711561.

It is not a de Polignac number, because 38643141 - 2¹ = 38643139 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38643099 and 38643108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38643149) 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 in 3 ways as a sum of consecutive naturals, for example, 6440521 + ... + 6440526.

It is an arithmetic number, because the mean of its divisors is an integer number (12881048).

Almost surely, 2^38643141 is an apocalyptic number.

It is an amenable number.

38643141 is a deficient number, since it is larger than the sum of its proper divisors (12881051).

38643141 is a wasteful number, since it uses less digits than its factorization.

38643141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12881050.

The product of its digits is 6912, while the sum is 30.

The square root of 38643141 is about 6216.3607520799. The cubic root of 38643141 is about 338.0836277555.

The spelling of 38643141 in words is "thirty-eight million, six hundred forty-three thousand, one hundred forty-one".