139273111 has 4 divisors (see below), whose sum is σ = 143765824. Its totient is φ = 134780400.

The previous prime is 139273093. The next prime is 139273139. The reversal of 139273111 is 111372931.

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 139273111 - 2¹¹ = 139271063 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 139273111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139273411) 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, 2246310 + ... + 2246371.

It is an arithmetic number, because the mean of its divisors is an integer number (35941456).

Almost surely, 2^139273111 is an apocalyptic number.

139273111 is a deficient number, since it is larger than the sum of its proper divisors (4492713).

139273111 is an equidigital number, since it uses as much as digits as its factorization.

139273111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4492712.

The product of its digits is 1134, while the sum is 28.

The square root of 139273111 is about 11801.4029250763. The cubic root of 139273111 is about 518.3491916126.

The spelling of 139273111 in words is "one hundred thirty-nine million, two hundred seventy-three thousand, one hundred eleven".