139078573349 has 4 divisors (see below), whose sum is σ = 139303256640. Its totient is φ = 138853890060.

The previous prime is 139078573301. The next prime is 139078573373. The reversal of 139078573349 is 943375870931.

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, and also an emirpimes, since its reverse is a distinct semiprime: 943375870931 = 13 ⋅72567374687.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-139078573349 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139078573649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112340717 + ... + 112341954.

It is an arithmetic number, because the mean of its divisors is an integer number (34825814160).

Almost surely, 2^139078573349 is an apocalyptic number.

It is an amenable number.

139078573349 is a deficient number, since it is larger than the sum of its proper divisors (224683291).

139078573349 is an equidigital number, since it uses as much as digits as its factorization.

139078573349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224683290.

The product of its (nonzero) digits is 17146080, while the sum is 59.

The spelling of 139078573349 in words is "one hundred thirty-nine billion, seventy-eight million, five hundred seventy-three thousand, three hundred forty-nine".