137273644 has 12 divisors (see below), whose sum is σ = 240956968. Its totient is φ = 68428800.

The previous prime is 137273627. The next prime is 137273677. The reversal of 137273644 is 446372731.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50517 + ... + 53164.

Almost surely, 2^137273644 is an apocalyptic number.

It is an amenable number.

137273644 is a deficient number, since it is larger than the sum of its proper divisors (103683324).

137273644 is a wasteful number, since it uses less digits than its factorization.

137273644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104016 (or 104014 counting only the distinct ones).

The product of its digits is 84672, while the sum is 37.

The square root of 137273644 is about 11716.3835717341. The cubic root of 137273644 is about 515.8566745333.

It can be divided in two parts, 13727 and 3644, that added together give a palindrome (17371).

The spelling of 137273644 in words is "one hundred thirty-seven million, two hundred seventy-three thousand, six hundred forty-four".