12511696 has 20 divisors (see below), whose sum is σ = 24296932. Its totient is φ = 6241536.

The previous prime is 12511687. The next prime is 12511703. The reversal of 12511696 is 69611521.

It can be written as a sum of positive squares in 2 ways, for example, as 10368400 + 2143296 = 3220^2 + 1464^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11596 + ... + 12628.

Almost surely, 2^12511696 is an apocalyptic number.

12511696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12511696 is a deficient number, since it is larger than the sum of its proper divisors (11785236).

12511696 is a wasteful number, since it uses less digits than its factorization.

12511696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1798 (or 1792 counting only the distinct ones).

The product of its digits is 3240, while the sum is 31.

The square root of 12511696 is about 3537.1875833775. The cubic root of 12511696 is about 232.1518031469.

The spelling of 12511696 in words is "twelve million, five hundred eleven thousand, six hundred ninety-six".