1226115636 has 24 divisors (see below), whose sum is σ = 2880141600. Its totient is φ = 405961632.

The previous prime is 1226115623. The next prime is 1226115641. The reversal of 1226115636 is 6365116221.

It is a junction number, because it is equal to n+sod(n) for n = 1226115597 and 1226115606.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 341086 + ... + 344661.

It is an arithmetic number, because the mean of its divisors is an integer number (120005900).

Almost surely, 2^1226115636 is an apocalyptic number.

It is an amenable number.

1226115636 is an abundant number, since it is smaller than the sum of its proper divisors (1654025964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1226115636 is a wasteful number, since it uses less digits than its factorization.

1226115636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685903 (or 685901 counting only the distinct ones).

The product of its digits is 12960, while the sum is 33.

The square root of 1226115636 is about 35015.9340300955. The cubic root of 1226115636 is about 1070.3122028384.

The spelling of 1226115636 in words is "one billion, two hundred twenty-six million, one hundred fifteen thousand, six hundred thirty-six".