13045540 has 24 divisors (see below), whose sum is σ = 27784512. Its totient is φ = 5144160.

The previous prime is 13045523. The next prime is 13045541. The reversal of 13045540 is 4554031.

It is a super-2 number, since 2×13045540² = 340372227783200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13045541) by changing a digit.

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, 3174 + ... + 6013.

It is an arithmetic number, because the mean of its divisors is an integer number (1157688).

Almost surely, 2^13045540 is an apocalyptic number.

13045540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13045540 is an abundant number, since it is smaller than the sum of its proper divisors (14738972).

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

13045540 is a wasteful number, since it uses less digits than its factorization.

13045540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9267 (or 9265 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 13045540 is about 3611.8610161522. The cubic root of 13045540 is about 235.4077123316.

Adding to 13045540 its reverse (4554031), we get a palindrome (17599571).

The spelling of 13045540 in words is "thirteen million, forty-five thousand, five hundred forty".