12465143 has 4 divisors (see below), whose sum is σ = 12575568. Its totient is φ = 12354720.

The previous prime is 12465139. The next prime is 12465151. The reversal of 12465143 is 34156421.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12465143 - 2² = 12465139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12465133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55043 + ... + 55268.

It is an arithmetic number, because the mean of its divisors is an integer number (3143892).

Almost surely, 2^12465143 is an apocalyptic number.

12465143 is a deficient number, since it is larger than the sum of its proper divisors (110425).

12465143 is a wasteful number, since it uses less digits than its factorization.

12465143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110424.

The product of its digits is 2880, while the sum is 26.

The square root of 12465143 is about 3530.6009403500. The cubic root of 12465143 is about 231.8635183684.

The spelling of 12465143 in words is "twelve million, four hundred sixty-five thousand, one hundred forty-three".