13155040 has 24 divisors (see below), whose sum is σ = 31079160. Its totient is φ = 5261952.

The previous prime is 13155031. The next prime is 13155047. The reversal of 13155040 is 4055131.

It is a junction number, because it is equal to n+sod(n) for n = 13154999 and 13155017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13155047) 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 3 ways as a sum of consecutive naturals, for example, 40950 + ... + 41269.

It is an arithmetic number, because the mean of its divisors is an integer number (1294965).

Almost surely, 2^13155040 is an apocalyptic number.

13155040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13155040 is an abundant number, since it is smaller than the sum of its proper divisors (17924120).

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

13155040 is an equidigital number, since it uses as much as digits as its factorization.

13155040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82234 (or 82226 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 13155040 is about 3626.9877308863. The cubic root of 13155040 is about 236.0645231983.

Subtracting from 13155040 its reverse (4055131), we obtain a palindrome (9099909).

The spelling of 13155040 in words is "thirteen million, one hundred fifty-five thousand, forty".