12539953 has 8 divisors (see below), whose sum is σ = 12813416. Its totient is φ = 12268800.

The previous prime is 12539951. The next prime is 12539987. The reversal of 12539953 is 35993521.

It can be written as a sum of positive squares in 4 ways, for example, as 29584 + 12510369 = 172^2 + 3537^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 12539953 - 2¹ = 12539951 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12539951) 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 7 ways as a sum of consecutive naturals, for example, 14275 + ... + 15127.

It is an arithmetic number, because the mean of its divisors is an integer number (1601677).

Almost surely, 2^12539953 is an apocalyptic number.

It is an amenable number.

12539953 is a deficient number, since it is larger than the sum of its proper divisors (273463).

12539953 is an equidigital number, since it uses as much as digits as its factorization.

12539953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1155.

The product of its digits is 36450, while the sum is 37.

The square root of 12539953 is about 3541.1796057246. The cubic root of 12539953 is about 232.3264392443.

The spelling of 12539953 in words is "twelve million, five hundred thirty-nine thousand, nine hundred fifty-three".