13405125 has 16 divisors (see below), whose sum is σ = 22306752. Its totient is φ = 7149200.

The previous prime is 13405123. The next prime is 13405151. The reversal of 13405125 is 52150431.

13405125 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13405125 - 2¹ = 13405123 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13405123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17499 + ... + 18248.

It is an arithmetic number, because the mean of its divisors is an integer number (1394172).

Almost surely, 2^13405125 is an apocalyptic number.

13405125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13405125 is a deficient number, since it is larger than the sum of its proper divisors (8901627).

13405125 is an equidigital number, since it uses as much as digits as its factorization.

13405125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35765 (or 35755 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 13405125 is about 3661.3009982792. The cubic root of 13405125 is about 237.5510508910.

Adding to 13405125 its reverse (52150431), we get a palindrome (65555556).

It can be divided in two parts, 13405 and 125, that added together give a triangular number (13530 = T₁₆₄).

The spelling of 13405125 in words is "thirteen million, four hundred five thousand, one hundred twenty-five".