1636225132 has 12 divisors (see below), whose sum is σ = 2864630440. Its totient is φ = 817759296.

The previous prime is 1636225099. The next prime is 1636225159. The reversal of 1636225132 is 2315226361.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1636225094 and 1636225103.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 77757 + ... + 96532.

Almost surely, 2^1636225132 is an apocalyptic number.

It is an amenable number.

1636225132 is a deficient number, since it is larger than the sum of its proper divisors (1228405308).

1636225132 is a wasteful number, since it uses less digits than its factorization.

1636225132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176640 (or 176638 counting only the distinct ones).

The product of its digits is 12960, while the sum is 31.

The square root of 1636225132 is about 40450.2797518138. The cubic root of 1636225132 is about 1178.3682156266.

The spelling of 1636225132 in words is "one billion, six hundred thirty-six million, two hundred twenty-five thousand, one hundred thirty-two".