12534418 has 8 divisors (see below), whose sum is σ = 20247948. Its totient is φ = 5785104.

The previous prime is 12534367. The next prime is 12534421. The reversal of 12534418 is 81443521.

12534418 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 12089529 + 444889 = 3477^2 + 667^2 .

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

It is a super-2 number, since 2×12534418² = 314223269197448, which contains 22 as substring.

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, 241021 + ... + 241072.

Almost surely, 2^12534418 is an apocalyptic number.

12534418 is a deficient number, since it is larger than the sum of its proper divisors (7713530).

12534418 is a wasteful number, since it uses less digits than its factorization.

12534418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482108.

The product of its digits is 3840, while the sum is 28.

The square root of 12534418 is about 3540.3980002254. The cubic root of 12534418 is about 232.2922520857.

Adding to 12534418 its reverse (81443521), we get a palindrome (93977939).

It can be divided in two parts, 1253 and 4418, that added together give a triangular number (5671 = T₁₀₆).

The spelling of 12534418 in words is "twelve million, five hundred thirty-four thousand, four hundred eighteen".