13105420 has 24 divisors (see below), whose sum is σ = 27728064. Its totient is φ = 5202816.

The previous prime is 13105409. The next prime is 13105427. The reversal of 13105420 is 2450131.

It is a junction number, because it is equal to n+sod(n) for n = 13105394 and 13105403.

It is not an unprimeable number, because it can be changed into a prime (13105427) 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, 349 + ... + 5131.

It is an arithmetic number, because the mean of its divisors is an integer number (1155336).

Almost surely, 2^13105420 is an apocalyptic number.

13105420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13105420 is an abundant number, since it is smaller than the sum of its proper divisors (14622644).

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

13105420 is a wasteful number, since it uses less digits than its factorization.

13105420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4929 (or 4927 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 13105420 is about 3620.1408812365. The cubic root of 13105420 is about 235.7673422917.

Adding to 13105420 its reverse (2450131), we get a palindrome (15555551).

The spelling of 13105420 in words is "thirteen million, one hundred five thousand, four hundred twenty".