122732565136 has 20 divisors (see below), whose sum is σ = 237800468412. Its totient is φ = 61364702336.

The previous prime is 122732565127. The next prime is 122732565149. The reversal of 122732565136 is 631565237221.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 59155968400 + 63576596736 = 243220^2 + 252144^2 .

It is a junction number, because it is equal to n+sod(n) for n = 122732565092 and 122732565101.

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 3 ways as a sum of consecutive naturals, for example, 777666 + ... + 922078.

Almost surely, 2^122732565136 is an apocalyptic number.

122732565136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

122732565136 is a deficient number, since it is larger than the sum of its proper divisors (115067903276).

122732565136 is a wasteful number, since it uses less digits than its factorization.

122732565136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197538 (or 197532 counting only the distinct ones).

The product of its digits is 453600, while the sum is 43.

The spelling of 122732565136 in words is "one hundred twenty-two billion, seven hundred thirty-two million, five hundred sixty-five thousand, one hundred thirty-six".