12513434 has 8 divisors (see below), whose sum is σ = 18791028. Its totient is φ = 6249760.

The previous prime is 12513433. The next prime is 12513451. The reversal of 12513434 is 43431521.

It can be written as a sum of positive squares in 2 ways, for example, as 11202409 + 1311025 = 3347^2 + 1145^2 .

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

It is not an unprimeable number, because it can be changed into a prime (12513433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 827 + ... + 5070.

Almost surely, 2^12513434 is an apocalyptic number.

12513434 is a deficient number, since it is larger than the sum of its proper divisors (6277594).

12513434 is a wasteful number, since it uses less digits than its factorization.

12513434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6960.

The product of its digits is 1440, while the sum is 23.

The square root of 12513434 is about 3537.4332502536. The cubic root of 12513434 is about 232.1625520535.

Adding to 12513434 its reverse (43431521), we get a palindrome (55944955).

The spelling of 12513434 in words is "twelve million, five hundred thirteen thousand, four hundred thirty-four".