13561480 has 32 divisors (see below), whose sum is σ = 30686040. Its totient is φ = 5393920.

The previous prime is 13561463. The next prime is 13561487. The reversal of 13561480 is 8416531.

It can be written as a sum of positive squares in 4 ways, for example, as 13557124 + 4356 = 3682^2 + 66^2 .

It is not an unprimeable number, because it can be changed into a prime (13561487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7020 + ... + 8740.

Almost surely, 2^13561480 is an apocalyptic number.

13561480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13561480 is an abundant number, since it is smaller than the sum of its proper divisors (17124560).

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

13561480 is a wasteful number, since it uses less digits than its factorization.

13561480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1929 (or 1925 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 13561480 is about 3682.5914788366. The cubic root of 13561480 is about 238.4710675773.

It can be divided in two parts, 13561 and 480, that added together give a palindrome (14041).

The spelling of 13561480 in words is "thirteen million, five hundred sixty-one thousand, four hundred eighty".