137531121226 has 16 divisors (see below), whose sum is σ = 209187672264. Its totient is φ = 67802482944.

The previous prime is 137531121187. The next prime is 137531121257. The reversal of 137531121226 is 622121135731.

It can be written as a sum of positive squares in 4 ways, for example, as 136327100625 + 1204020601 = 369225^2 + 34699^2 .

It is a junction number, because it is equal to n+sod(n) for n = 137531121191 and 137531121200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 330150 + ... + 619726.

Almost surely, 2^137531121226 is an apocalyptic number.

137531121226 is a deficient number, since it is larger than the sum of its proper divisors (71656551038).

137531121226 is a wasteful number, since it uses less digits than its factorization.

137531121226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292905.

The product of its digits is 15120, while the sum is 34.

Adding to 137531121226 its reverse (622121135731), we get a palindrome (759652256957).

The spelling of 137531121226 in words is "one hundred thirty-seven billion, five hundred thirty-one million, one hundred twenty-one thousand, two hundred twenty-six".