12532138 has 8 divisors (see below), whose sum is σ = 18879588. Its totient is φ = 6238944.

The previous prime is 12532123. The next prime is 12532151. The reversal of 12532138 is 83123521.

It can be written as a sum of positive squares in 2 ways, for example, as 12341169 + 190969 = 3513^2 + 437^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12981 + ... + 13912.

Almost surely, 2^12532138 is an apocalyptic number.

12532138 is a deficient number, since it is larger than the sum of its proper divisors (6347450).

12532138 is a wasteful number, since it uses less digits than its factorization.

12532138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27128.

The product of its digits is 1440, while the sum is 25.

The square root of 12532138 is about 3540.0759878850. The cubic root of 12532138 is about 232.2781666438.

Adding to 12532138 its reverse (83123521), we get a palindrome (95655659).

The spelling of 12532138 in words is "twelve million, five hundred thirty-two thousand, one hundred thirty-eight".