12272516 has 12 divisors (see below), whose sum is σ = 21508620. Its totient is φ = 6127200.

The previous prime is 12272483. The next prime is 12272549. The reversal of 12272516 is 61527221.

It is an interprime number because it is at equal distance from previous prime (12272483) and next prime (12272549).

It can be written as a sum of positive squares in 2 ways, for example, as 6002500 + 6270016 = 2450^2 + 2504^2 .

It is a super-2 number, since 2×12272516² = 301229297940512, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 1466 + ... + 5166.

It is an arithmetic number, because the mean of its divisors is an integer number (1792385).

Almost surely, 2^12272516 is an apocalyptic number.

It is an amenable number.

12272516 is a deficient number, since it is larger than the sum of its proper divisors (9236104).

12272516 is a wasteful number, since it uses less digits than its factorization.

12272516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4534 (or 4532 counting only the distinct ones).

The product of its digits is 1680, while the sum is 26.

The square root of 12272516 is about 3503.2150947380. The cubic root of 12272516 is about 230.6629643267.

Adding to 12272516 its reverse (61527221), we get a palindrome (73799737).

The spelling of 12272516 in words is "twelve million, two hundred seventy-two thousand, five hundred sixteen".