12195650 has 24 divisors (see below), whose sum is σ = 22850100. Its totient is φ = 4842560.

The previous prime is 12195643. The next prime is 12195661. The reversal of 12195650 is 5659121.

It can be written as a sum of positive squares in 6 ways, for example, as 175561 + 12020089 = 419^2 + 3467^2 .

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 11 ways as a sum of consecutive naturals, for example, 6632 + ... + 8268.

Almost surely, 2^12195650 is an apocalyptic number.

12195650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12195650 is a deficient number, since it is larger than the sum of its proper divisors (10654450).

12195650 is a wasteful number, since it uses less digits than its factorization.

12195650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1798 (or 1793 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 29.

The square root of 12195650 is about 3492.2270831090. The cubic root of 12195650 is about 230.1803877864.

The spelling of 12195650 in words is "twelve million, one hundred ninety-five thousand, six hundred fifty".