13115448 has 24 divisors (see below), whose sum is σ = 35521200. Its totient is φ = 4371792.

The previous prime is 13115437. The next prime is 13115471. The reversal of 13115448 is 84451131.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 91008 + ... + 91151.

It is an arithmetic number, because the mean of its divisors is an integer number (1480050).

Almost surely, 2^13115448 is an apocalyptic number.

13115448 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

13115448 is an abundant number, since it is smaller than the sum of its proper divisors (22405752).

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

13115448 is a wasteful number, since it uses less digits than its factorization.

13115448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182171 (or 182164 counting only the distinct ones).

The product of its digits is 1920, while the sum is 27.

The square root of 13115448 is about 3621.5256453600. The cubic root of 13115448 is about 235.8274617469.

Adding to 13115448 its reverse (84451131), we get a palindrome (97566579).

The spelling of 13115448 in words is "thirteen million, one hundred fifteen thousand, four hundred forty-eight".