139105342122346 has 4 divisors (see below), whose sum is σ = 208658013183522. Its totient is φ = 69552671061172.

The previous prime is 139105342122301. The next prime is 139105342122401. The reversal of 139105342122346 is 643221243501931.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 136322320761225 + 2783021361121 = 11675715^2 + 1668239^2 .

It is a junction number, because it is equal to n+sod(n) for n = 139105342122296 and 139105342122305.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34776335530585 + ... + 34776335530588.

Almost surely, 2^{139105342122346} is an apocalyptic number.

139105342122346 is a deficient number, since it is larger than the sum of its proper divisors (69552671061176).

139105342122346 is an equidigital number, since it uses as much as digits as its factorization.

139105342122346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69552671061175.

The product of its (nonzero) digits is 933120, while the sum is 46.

The spelling of 139105342122346 in words is "one hundred thirty-nine trillion, one hundred five billion, three hundred forty-two million, one hundred twenty-two thousand, three hundred forty-six".