12271936 has 14 divisors (see below), whose sum is σ = 24352250. Its totient is φ = 6135936.

The previous prime is 12271879. The next prime is 12271951. The reversal of 12271936 is 63917221.

It can be written as a sum of positive squares in only one way, i.e., 7182400 + 5089536 = 2680^2 + 2256^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12271898 and 12271907.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95811 + ... + 95938.

Almost surely, 2^12271936 is an apocalyptic number.

12271936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12271936 is a deficient number, since it is larger than the sum of its proper divisors (12080314).

12271936 is an equidigital number, since it uses as much as digits as its factorization.

12271936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191761 (or 191751 counting only the distinct ones).

The product of its digits is 4536, while the sum is 31.

The square root of 12271936 is about 3503.1323126596. The cubic root of 12271936 is about 230.6593305533.

The spelling of 12271936 in words is "twelve million, two hundred seventy-one thousand, nine hundred thirty-six".