13423155 has 16 divisors (see below), whose sum is σ = 22170624. Its totient is φ = 6927840.

The previous prime is 13423117. The next prime is 13423199. The reversal of 13423155 is 55132431.

13423155 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 13423155 - 2¹⁰ = 13422131 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13969 + ... + 14898.

It is an arithmetic number, because the mean of its divisors is an integer number (1385664).

Almost surely, 2^13423155 is an apocalyptic number.

13423155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13423155 is a deficient number, since it is larger than the sum of its proper divisors (8747469).

13423155 is a wasteful number, since it uses less digits than its factorization.

13423155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28906.

The product of its digits is 1800, while the sum is 24.

The square root of 13423155 is about 3663.7624104191. The cubic root of 13423155 is about 237.6575058634.

Adding to 13423155 its reverse (55132431), we get a palindrome (68555586).

The spelling of 13423155 in words is "thirteen million, four hundred twenty-three thousand, one hundred fifty-five".