2038138543 has 4 divisors (see below), whose sum is σ = 2329301200.
Its totient is φ = 1746975888.
The previous prime is 2038138477. The next prime is 2038138561. The reversal of 2038138543 is 3458318302.
It is a semiprime because it is the product of two primes.
It is not a de Polignac number, because 2038138543 - 213 = 2038130351 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2038108543) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145581318 + ... + 145581331.
It is an arithmetic number, because the mean of its divisors is an integer number (582325300).
Almost surely, 22038138543 is an apocalyptic number.
2038138543 is a deficient number, since it is larger than the sum of its proper divisors (291162657).
2038138543 is an equidigital number, since it uses as much as digits as its factorization.
2038138543 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 291162656.
The product of its (nonzero) digits is 69120, while the sum is 37.
The square root of 2038138543 is about 45145.7477842598.
The cubic root of 2038138543 is about 1267.8792686170.
The spelling of 2038138543 in words is "two billion, thirty-eight million, one hundred thirty-eight thousand, five hundred forty-three".