139339349 has 4 divisors (see below), whose sum is σ = 142304064. Its totient is φ = 136374636.

The previous prime is 139339339. The next prime is 139339351. The reversal of 139339349 is 943933931.

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 not a de Polignac number, because 139339349 - 2⁸ = 139339093 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 (139339339) 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, 1482287 + ... + 1482380.

It is an arithmetic number, because the mean of its divisors is an integer number (35576016).

Almost surely, 2^139339349 is an apocalyptic number.

It is an amenable number.

139339349 is a deficient number, since it is larger than the sum of its proper divisors (2964715).

139339349 is an equidigital number, since it uses as much as digits as its factorization.

139339349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2964714.

The product of its digits is 236196, while the sum is 44.

The square root of 139339349 is about 11804.2089527422. The cubic root of 139339349 is about 518.4313538520.

The spelling of 139339349 in words is "one hundred thirty-nine million, three hundred thirty-nine thousand, three hundred forty-nine".