13240755 has 48 divisors (see below), whose sum is σ = 26148096. Its totient is φ = 6135360.

The previous prime is 13240729. The next prime is 13240757. The reversal of 13240755 is 55704231.

It is a happy number.

It is not a de Polignac number, because 13240755 - 2¹⁰ = 13239731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13240757) 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 47 ways as a sum of consecutive naturals, for example, 10804 + ... + 11966.

It is an arithmetic number, because the mean of its divisors is an integer number (544752).

Almost surely, 2^13240755 is an apocalyptic number.

13240755 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13240755 is a deficient number, since it is larger than the sum of its proper divisors (12907341).

13240755 is a wasteful number, since it uses less digits than its factorization.

13240755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1208 (or 1205 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 13240755 is about 3638.7848246358. The cubic root of 13240755 is about 236.5761264020.

Adding to 13240755 its reverse (55704231), we get a palindrome (68944986).

The spelling of 13240755 in words is "thirteen million, two hundred forty thousand, seven hundred fifty-five".