12536121 has 16 divisors (see below), whose sum is σ = 18583040. Its totient is φ = 7464960.

The previous prime is 12536113. The next prime is 12536129. The reversal of 12536121 is 12163521.

It is an interprime number because it is at equal distance from previous prime (12536113) and next prime (12536129).

It is not a de Polignac number, because 12536121 - 2³ = 12536113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12536129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3976 + ... + 6393.

It is an arithmetic number, because the mean of its divisors is an integer number (1161440).

Almost surely, 2^12536121 is an apocalyptic number.

It is an amenable number.

12536121 is a deficient number, since it is larger than the sum of its proper divisors (6046919).

12536121 is a wasteful number, since it uses less digits than its factorization.

12536121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10416.

The product of its digits is 360, while the sum is 21.

The square root of 12536121 is about 3540.6385017395. The cubic root of 12536121 is about 232.3027718081.

Adding to 12536121 its reverse (12163521), we get a palindrome (24699642).

The spelling of 12536121 in words is "twelve million, five hundred thirty-six thousand, one hundred twenty-one".