12530036 has 12 divisors (see below), whose sum is σ = 21967428. Its totient is φ = 6253632.

The previous prime is 12530029. The next prime is 12530039. The reversal of 12530036 is 63003521.

It can be written as a sum of positive squares in 2 ways, for example, as 6280036 + 6250000 = 2506^2 + 2500^2 .

It is a super-2 number, since 2×12530036² = 314003604322592, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12530039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71 + ... + 5006.

It is an arithmetic number, because the mean of its divisors is an integer number (1830619).

Almost surely, 2^12530036 is an apocalyptic number.

It is an amenable number.

12530036 is a deficient number, since it is larger than the sum of its proper divisors (9437392).

12530036 is a wasteful number, since it uses less digits than its factorization.

12530036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5698 (or 5696 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 12530036 is about 3539.7790891523. The cubic root of 12530036 is about 232.2651793412.

Adding to 12530036 its reverse (63003521), we get a palindrome (75533557).

The spelling of 12530036 in words is "twelve million, five hundred thirty thousand, thirty-six".