139839103 has 4 divisors (see below), whose sum is σ = 145919088. Its totient is φ = 133759120.

The previous prime is 139839101. The next prime is 139839121. The reversal of 139839103 is 301938931.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 139839103 - 2¹ = 139839101 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 (139839101) 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, 3039958 + ... + 3040003.

It is an arithmetic number, because the mean of its divisors is an integer number (36479772).

Almost surely, 2^139839103 is an apocalyptic number.

139839103 is a deficient number, since it is larger than the sum of its proper divisors (6079985).

139839103 is an equidigital number, since it uses as much as digits as its factorization.

139839103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6079984.

The product of its (nonzero) digits is 17496, while the sum is 37.

The square root of 139839103 is about 11825.3584723678. The cubic root of 139839103 is about 519.0504156657.

The spelling of 139839103 in words is "one hundred thirty-nine million, eight hundred thirty-nine thousand, one hundred three".