13261755 has 32 divisors (see below), whose sum is σ = 23353344. Its totient is φ = 6385536.

The previous prime is 13261747. The next prime is 13261757. The reversal of 13261755 is 55716231.

It is not a de Polignac number, because 13261755 - 2³ = 13261747 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13261757) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8442 + ... + 9888.

It is an arithmetic number, because the mean of its divisors is an integer number (729792).

Almost surely, 2^13261755 is an apocalyptic number.

13261755 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13261755 is a deficient number, since it is larger than the sum of its proper divisors (10091589).

13261755 is a wasteful number, since it uses less digits than its factorization.

13261755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1515.

The product of its digits is 6300, while the sum is 30.

The square root of 13261755 is about 3641.6692601059. The cubic root of 13261755 is about 236.7011312193.

Adding to 13261755 its reverse (55716231), we get a palindrome (68977986).

It can be divided in two parts, 1326 and 1755, that added together give a triangular number (3081 = T₇₈).

The spelling of 13261755 in words is "thirteen million, two hundred sixty-one thousand, seven hundred fifty-five".