13431055 has 16 divisors (see below), whose sum is σ = 17884800. Its totient is φ = 9600160.

The previous prime is 13431053. The next prime is 13431059. The reversal of 13431055 is 55013431.

It is a happy number.

It is not a de Polignac number, because 13431055 - 2¹ = 13431053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13431053) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1176 + ... + 5314.

It is an arithmetic number, because the mean of its divisors is an integer number (1117800).

Almost surely, 2^13431055 is an apocalyptic number.

13431055 is a deficient number, since it is larger than the sum of its proper divisors (4453745).

13431055 is a wasteful number, since it uses less digits than its factorization.

13431055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4214.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 13431055 is about 3664.8403785158. The cubic root of 13431055 is about 237.7041199938.

Adding to 13431055 its reverse (55013431), we get a palindrome (68444486).

The spelling of 13431055 in words is "thirteen million, four hundred thirty-one thousand, fifty-five".