13123755 has 16 divisors (see below), whose sum is σ = 23331360. Its totient is φ = 6999264.

The previous prime is 13123751. The next prime is 13123769. The reversal of 13123755 is 55732131.

It is not a de Polignac number, because 13123755 - 2² = 13123751 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (13123751) 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, 48472 + ... + 48741.

It is an arithmetic number, because the mean of its divisors is an integer number (1458210).

Almost surely, 2^13123755 is an apocalyptic number.

13123755 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13123755 is a deficient number, since it is larger than the sum of its proper divisors (10207605).

13123755 is an equidigital number, since it uses as much as digits as its factorization.

13123755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97227 (or 97221 counting only the distinct ones).

The product of its digits is 3150, while the sum is 27.

The square root of 13123755 is about 3622.6723561482. The cubic root of 13123755 is about 235.8772403305.

Adding to 13123755 its reverse (55732131), we get a palindrome (68855886).

The spelling of 13123755 in words is "thirteen million, one hundred twenty-three thousand, seven hundred fifty-five".