13107540 has 24 divisors (see below), whose sum is σ = 36701280. Its totient is φ = 3495328.

The previous prime is 13107517. The next prime is 13107541. The reversal of 13107540 is 4570131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13107541) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 109170 + ... + 109289.

It is an arithmetic number, because the mean of its divisors is an integer number (1529220).

Almost surely, 2^13107540 is an apocalyptic number.

13107540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13107540 is an abundant number, since it is smaller than the sum of its proper divisors (23593740).

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

13107540 is a wasteful number, since it uses less digits than its factorization.

13107540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218471 (or 218469 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 13107540 is about 3620.4336756803. The cubic root of 13107540 is about 235.7800545847.

Adding to 13107540 its reverse (4570131), we get a palindrome (17677671).

The spelling of 13107540 in words is "thirteen million, one hundred seven thousand, five hundred forty".