12261650 has 24 divisors (see below), whose sum is σ = 24008880. Its totient is φ = 4646160.

The previous prime is 12261649. The next prime is 12261659. The reversal of 12261650 is 5616221.

It is not an unprimeable number, because it can be changed into a prime (12261659) by changing a digit.

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, 5504 + ... + 7403.

It is an arithmetic number, because the mean of its divisors is an integer number (1000370).

Almost surely, 2^12261650 is an apocalyptic number.

12261650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12261650 is a deficient number, since it is larger than the sum of its proper divisors (11747230).

12261650 is a wasteful number, since it uses less digits than its factorization.

12261650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12938 (or 12933 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 12261650 is about 3501.6638902099. The cubic root of 12261650 is about 230.5948684327.

Adding to 12261650 its reverse (5616221), we get a palindrome (17877871).

The spelling of 12261650 in words is "twelve million, two hundred sixty-one thousand, six hundred fifty".