13471520 has 48 divisors (see below), whose sum is σ = 32046840. Its totient is φ = 5351424.

The previous prime is 13471519. The next prime is 13471547. The reversal of 13471520 is 2517431.

It can be written as a sum of positive squares in 4 ways, for example, as 2999824 + 10471696 = 1732^2 + 3236^2 .

It is a super-2 number, since 2×13471520² = 362963702220800, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42884 + ... + 43196.

Almost surely, 2^13471520 is an apocalyptic number.

13471520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13471520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16023420).

13471520 is an abundant number, since it is smaller than the sum of its proper divisors (18575320).

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

13471520 is a wasteful number, since it uses less digits than its factorization.

13471520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 597 (or 589 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 13471520 is about 3670.3569308720. The cubic root of 13471520 is about 237.9425984959.

Adding to 13471520 its reverse (2517431), we get a palindrome (15988951).

The spelling of 13471520 in words is "thirteen million, four hundred seventy-one thousand, five hundred twenty".