139243103 has 8 divisors (see below), whose sum is σ = 144138240. Its totient is φ = 134373240.

The previous prime is 139243067. The next prime is 139243129. The reversal of 139243103 is 301342931.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 139243103 - 2¹⁶ = 139177567 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 (139243133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5258 + ... + 17496.

It is an arithmetic number, because the mean of its divisors is an integer number (18017280).

Almost surely, 2^139243103 is an apocalyptic number.

139243103 is a deficient number, since it is larger than the sum of its proper divisors (4895137).

139243103 is a wasteful number, since it uses less digits than its factorization.

139243103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12637.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 139243103 is about 11800.1314823183. The cubic root of 139243103 is about 518.3119608322.

The spelling of 139243103 in words is "one hundred thirty-nine million, two hundred forty-three thousand, one hundred three".