138353043 has 6 divisors (see below), whose sum is σ = 184497892. Its totient is φ = 92221780.

The previous prime is 138353029. The next prime is 138353051. The reversal of 138353043 is 340353831.

138353043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 138353043 - 2⁵ = 138353011 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 138353043.

It is not an unprimeable number, because it can be changed into a prime (138353143) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16978 + ... + 23768.

Almost surely, 2^138353043 is an apocalyptic number.

138353043 is a deficient number, since it is larger than the sum of its proper divisors (46144849).

138353043 is an frugal number, since it uses more digits than its factorization.

138353043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13585 (or 6794 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 138353043 is about 11762.3570342002. The cubic root of 138353043 is about 517.2052268845.

The spelling of 138353043 in words is "one hundred thirty-eight million, three hundred fifty-three thousand, forty-three".