137818303361 has 4 divisors (see below), whose sum is σ = 137835519300. Its totient is φ = 137801087424.

The previous prime is 137818303319. The next prime is 137818303379. The reversal of 137818303361 is 163303818731.

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

It can be written as a sum of positive squares in 2 ways, for example, as 123425742400 + 14392560961 = 351320^2 + 119969^2 .

It is a cyclic number.

It is not a de Polignac number, because 137818303361 - 2⁶ = 137818303297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (137818303061) 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, 8595956 + ... + 8611973.

It is an arithmetic number, because the mean of its divisors is an integer number (34458879825).

Almost surely, 2^137818303361 is an apocalyptic number.

It is an amenable number.

137818303361 is a deficient number, since it is larger than the sum of its proper divisors (17215939).

137818303361 is an equidigital number, since it uses as much as digits as its factorization.

137818303361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17215938.

The product of its (nonzero) digits is 217728, while the sum is 44.

The spelling of 137818303361 in words is "one hundred thirty-seven billion, eight hundred eighteen million, three hundred three thousand, three hundred sixty-one".