137831916227 has 4 divisors (see below), whose sum is σ = 137842614600. Its totient is φ = 137821217856.

The previous prime is 137831916203. The next prime is 137831916241. The reversal of 137831916227 is 722619138731.

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

It is a cyclic number.

It is not a de Polignac number, because 137831916227 - 2¹⁸ = 137831654083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (137831916127) 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, 5329838 + ... + 5355635.

It is an arithmetic number, because the mean of its divisors is an integer number (34460653650).

Almost surely, 2^137831916227 is an apocalyptic number.

137831916227 is a deficient number, since it is larger than the sum of its proper divisors (10698373).

137831916227 is a wasteful number, since it uses less digits than its factorization.

137831916227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10698372.

The product of its digits is 762048, while the sum is 50.

The spelling of 137831916227 in words is "one hundred thirty-seven billion, eight hundred thirty-one million, nine hundred sixteen thousand, two hundred twenty-seven".