13505270 has 16 divisors (see below), whose sum is σ = 24373440. Its totient is φ = 5387904.

The previous prime is 13505267. The next prime is 13505281. The reversal of 13505270 is 7250531.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 2771 + ... + 5889.

It is an arithmetic number, because the mean of its divisors is an integer number (1523340).

Almost surely, 2^13505270 is an apocalyptic number.

13505270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13505270 is a deficient number, since it is larger than the sum of its proper divisors (10868170).

13505270 is a wasteful number, since it uses less digits than its factorization.

13505270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3559.

The product of its (nonzero) digits is 1050, while the sum is 23.

The square root of 13505270 is about 3674.9517003629. The cubic root of 13505270 is about 238.1411374812.

It can be divided in two parts, 13505 and 270, that multiplied together give a triangular number (3646350 = T₂₇₀₀).

The spelling of 13505270 in words is "thirteen million, five hundred five thousand, two hundred seventy".