12132513 has 12 divisors (see below), whose sum is σ = 17557540. Its totient is φ = 8073216.

The previous prime is 12132499. The next prime is 12132529. The reversal of 12132513 is 31523121.

12132513 is a `hidden beast` number, since 121 + 32 + 513 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2039184 + 10093329 = 1428^2 + 3177^2 .

It is not a de Polignac number, because 12132513 - 2⁵ = 12132481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12132553) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6045 + ... + 7797.

Almost surely, 2^12132513 is an apocalyptic number.

It is an amenable number.

12132513 is a deficient number, since it is larger than the sum of its proper divisors (5425027).

12132513 is a wasteful number, since it uses less digits than its factorization.

12132513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2528 (or 2525 counting only the distinct ones).

The product of its digits is 180, while the sum is 18.

The square root of 12132513 is about 3483.1757061624. The cubic root of 12132513 is about 229.7824849683.

Adding to 12132513 its reverse (31523121), we get a palindrome (43655634).

The spelling of 12132513 in words is "twelve million, one hundred thirty-two thousand, five hundred thirteen".