137928303769 has 3 divisors (see below), whose sum is σ = 137928675157. Its totient is φ = 137927932382.

The previous prime is 137928303763. The next prime is 137928303791. The reversal of 137928303769 is 967303829731.

It is a happy number.

The square root of 137928303769 is 371387.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 967303829731 = 67 ⋅14437370593.

It is not a de Polignac number, because 137928303769 - 2¹⁵ = 137928271001 is a prime.

It is a super-2 number, since 2×137928303769² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (137928303763) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 185694 + ... + 557080.

Almost surely, 2^137928303769 is an apocalyptic number.

137928303769 is the 371387-th square number.

137928303769 is the 185694-th centered octagonal number.

It is an amenable number.

137928303769 is a deficient number, since it is larger than the sum of its proper divisors (371388).

137928303769 is an frugal number, since it uses more digits than its factorization.

137928303769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 742774 (or 371387 counting only the distinct ones).

The product of its (nonzero) digits is 10287648, while the sum is 58.

The spelling of 137928303769 in words is "one hundred thirty-seven billion, nine hundred twenty-eight million, three hundred three thousand, seven hundred sixty-nine".