12513433 has 2 divisors, whose sum is σ = 12513434. Its totient is φ = 12513432.

The previous prime is 12513409. The next prime is 12513451. The reversal of 12513433 is 33431521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10163344 + 2350089 = 3188^2 + 1533^2 .

It is an emirp because it is prime and its reverse (33431521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12513433 - 2⁵ = 12513401 is a prime.

It is not a weakly prime, because it can be changed into another prime (12513463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6256716 + 6256717.

It is an arithmetic number, because the mean of its divisors is an integer number (6256717).

Almost surely, 2^12513433 is an apocalyptic number.

It is an amenable number.

12513433 is a deficient number, since it is larger than the sum of its proper divisors (1).

12513433 is an equidigital number, since it uses as much as digits as its factorization.

12513433 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1080, while the sum is 22.

The square root of 12513433 is about 3537.4331089082. The cubic root of 12513433 is about 232.1625458691.

Adding to 12513433 its reverse (33431521), we get a palindrome (45944954).

The spelling of 12513433 in words is "twelve million, five hundred thirteen thousand, four hundred thirty-three".