13143207 has 16 divisors (see below), whose sum is σ = 21848832. Its totient is φ = 6827520.

The previous prime is 13143203. The next prime is 13143211. The reversal of 13143207 is 70234131.

It is an interprime number because it is at equal distance from previous prime (13143203) and next prime (13143211).

It is not a de Polignac number, because 13143207 - 2² = 13143203 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13143203) 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 15 ways as a sum of consecutive naturals, for example, 28218 + ... + 28679.

It is an arithmetic number, because the mean of its divisors is an integer number (1365552).

Almost surely, 2^13143207 is an apocalyptic number.

13143207 is a deficient number, since it is larger than the sum of its proper divisors (8705625).

13143207 is a wasteful number, since it uses less digits than its factorization.

13143207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56918.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 13143207 is about 3625.3561204384. The cubic root of 13143207 is about 235.9937217041.

Adding to 13143207 its reverse (70234131), we get a palindrome (83377338).

The spelling of 13143207 in words is "thirteen million, one hundred forty-three thousand, two hundred seven".