13312548 has 18 divisors (see below), whose sum is σ = 33651254. Its totient is φ = 4437504.

The previous prime is 13312529. The next prime is 13312553. The reversal of 13312548 is 84521331.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 11985444 + 1327104 = 3462^2 + 1152^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-3 number, since 3×13312548³ (a number of 22 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 184861 + ... + 184932.

Almost surely, 2^13312548 is an apocalyptic number.

13312548 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

13312548 is an abundant number, since it is smaller than the sum of its proper divisors (20338706).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13312548 is a wasteful number, since it uses less digits than its factorization.

13312548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369803 (or 369798 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 13312548 is about 3648.6364576373. The cubic root of 13312548 is about 237.0029375270.

Adding to 13312548 its reverse (84521331), we get a palindrome (97833879).

The spelling of 13312548 in words is "thirteen million, three hundred twelve thousand, five hundred forty-eight".