12653535 has 16 divisors (see below), whose sum is σ = 20579040. Its totient is φ = 6637440.

The previous prime is 12653533. The next prime is 12653539. The reversal of 12653535 is 53535621.

It is not a de Polignac number, because 12653535 - 2¹ = 12653533 is a prime.

It is a super-2 number, since 2×12653535² = 320223895992450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12653533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6000 + ... + 7829.

It is an arithmetic number, because the mean of its divisors is an integer number (1286190).

Almost surely, 2^12653535 is an apocalyptic number.

12653535 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12653535 is a deficient number, since it is larger than the sum of its proper divisors (7925505).

12653535 is a wasteful number, since it uses less digits than its factorization.

12653535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13898.

The product of its digits is 13500, while the sum is 30.

The square root of 12653535 is about 3557.1807657188. The cubic root of 12653535 is about 233.0257727820.

The spelling of 12653535 in words is "twelve million, six hundred fifty-three thousand, five hundred thirty-five".