12157535 has 16 divisors (see below), whose sum is σ = 15785280. Its totient is φ = 8935680.

The previous prime is 12157469. The next prime is 12157553. The reversal of 12157535 is 53575121.

It is a happy number.

It is not a de Polignac number, because 12157535 - 2¹⁰ = 12156511 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12157498 and 12157507.

It is a congruent number.

It is an unprimeable number.

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, 23075 + ... + 23595.

It is an arithmetic number, because the mean of its divisors is an integer number (986580).

Almost surely, 2^12157535 is an apocalyptic number.

12157535 is a deficient number, since it is larger than the sum of its proper divisors (3627745).

12157535 is a wasteful number, since it uses less digits than its factorization.

12157535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 898.

The product of its digits is 5250, while the sum is 29.

The square root of 12157535 is about 3486.7656933038. The cubic root of 12157535 is about 229.9403436962.

The spelling of 12157535 in words is "twelve million, one hundred fifty-seven thousand, five hundred thirty-five".