137847061117 has 4 divisors (see below), whose sum is σ = 137896277436. Its totient is φ = 137797844800.

The previous prime is 137847061111. The next prime is 137847061123. The reversal of 137847061117 is 711160748731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 711160748731 = 29 ⋅24522784439.

It is an interprime number because it is at equal distance from previous prime (137847061111) and next prime (137847061123).

It can be written as a sum of positive squares in 2 ways, for example, as 32173955641 + 105673105476 = 179371^2 + 325074^2 .

It is a cyclic number.

It is not a de Polignac number, because 137847061117 - 2¹¹ = 137847059069 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 (137847061111) 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, 24603958 + ... + 24609559.

It is an arithmetic number, because the mean of its divisors is an integer number (34474069359).

Almost surely, 2^137847061117 is an apocalyptic number.

It is an amenable number.

137847061117 is a deficient number, since it is larger than the sum of its proper divisors (49216319).

137847061117 is an equidigital number, since it uses as much as digits as its factorization.

137847061117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49216318.

The product of its (nonzero) digits is 197568, while the sum is 46.

The spelling of 137847061117 in words is "one hundred thirty-seven billion, eight hundred forty-seven million, sixty-one thousand, one hundred seventeen".