137844527523 has 32 divisors (see below), whose sum is σ = 197136322560. Its totient is φ = 85365995520.

The previous prime is 137844527507. The next prime is 137844527551. The reversal of 137844527523 is 325725448731.

It is not a de Polignac number, because 137844527523 - 2⁴ = 137844527507 is a prime.

It is a super-3 number, since 3×137844527523³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (137844527563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19017286 + ... + 19024532.

It is an arithmetic number, because the mean of its divisors is an integer number (6160510080).

Almost surely, 2^137844527523 is an apocalyptic number.

137844527523 is a deficient number, since it is larger than the sum of its proper divisors (59291795037).

137844527523 is a wasteful number, since it uses less digits than its factorization.

137844527523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12067.

The product of its digits is 5644800, while the sum is 51.

The spelling of 137844527523 in words is "one hundred thirty-seven billion, eight hundred forty-four million, five hundred twenty-seven thousand, five hundred twenty-three".