12953216 has 16 divisors (see below), whose sum is σ = 25805490. Its totient is φ = 6476544.

The previous prime is 12953203. The next prime is 12953221. The reversal of 12953216 is 61235921.

It can be written as a sum of positive squares in only one way, i.e., 8526400 + 4426816 = 2920^2 + 2104^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50471 + ... + 50726.

Almost surely, 2^12953216 is an apocalyptic number.

12953216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12953216 is a deficient number, since it is larger than the sum of its proper divisors (12852274).

12953216 is an equidigital number, since it uses as much as digits as its factorization.

12953216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101211 (or 101199 counting only the distinct ones).

The product of its digits is 3240, while the sum is 29.

The square root of 12953216 is about 3599.0576544423. The cubic root of 12953216 is about 234.8510660357.

The spelling of 12953216 in words is "twelve million, nine hundred fifty-three thousand, two hundred sixteen".