139000349 has 4 divisors (see below), whose sum is σ = 140675136. Its totient is φ = 137325564.

The previous prime is 139000343. The next prime is 139000391. The reversal of 139000349 is 943000931.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 139000349 - 2⁸ = 139000093 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 (139000343) 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, 837269 + ... + 837434.

It is an arithmetic number, because the mean of its divisors is an integer number (35168784).

Almost surely, 2^139000349 is an apocalyptic number.

It is an amenable number.

139000349 is a deficient number, since it is larger than the sum of its proper divisors (1674787).

139000349 is an equidigital number, since it uses as much as digits as its factorization.

139000349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1674786.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 139000349 is about 11789.8409234391. The cubic root of 139000349 is about 518.0105802761.

The spelling of 139000349 in words is "one hundred thirty-nine million, three hundred forty-nine", and thus it is an aban number.