12547036 has 6 divisors (see below), whose sum is σ = 21957320. Its totient is φ = 6273516.

The previous prime is 12547009. The next prime is 12547057. The reversal of 12547036 is 63074521.

It is a super-2 number, since 2×12547036² = 314856224770592, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 12546995 and 12547013.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1568376 + ... + 1568383.

Almost surely, 2^12547036 is an apocalyptic number.

It is an amenable number.

12547036 is a deficient number, since it is larger than the sum of its proper divisors (9410284).

12547036 is a wasteful number, since it uses less digits than its factorization.

12547036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3136763 (or 3136761 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 12547036 is about 3542.1795550198. The cubic root of 12547036 is about 232.3701730191.

The spelling of 12547036 in words is "twelve million, five hundred forty-seven thousand, thirty-six".