12531235 has 8 divisors (see below), whose sum is σ = 15056496. Its totient is φ = 10012320.

The previous prime is 12531221. The next prime is 12531247. The reversal of 12531235 is 53213521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-12531235 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6837 + ... + 8473.

It is an arithmetic number, because the mean of its divisors is an integer number (1882062).

Almost surely, 2^12531235 is an apocalyptic number.

12531235 is a deficient number, since it is larger than the sum of its proper divisors (2525261).

12531235 is a wasteful number, since it uses less digits than its factorization.

12531235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3173.

The product of its digits is 900, while the sum is 22.

The square root of 12531235 is about 3539.9484459523. The cubic root of 12531235 is about 232.2725875951.

Adding to 12531235 its reverse (53213521), we get a palindrome (65744756).

The spelling of 12531235 in words is "twelve million, five hundred thirty-one thousand, two hundred thirty-five".