12143963 has 4 divisors (see below), whose sum is σ = 13078128. Its totient is φ = 11209800.

The previous prime is 12143939. The next prime is 12143969. The reversal of 12143963 is 36934121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36934121 = 7 ⋅5276303.

It is a cyclic number.

It is not a de Polignac number, because 12143963 - 2⁸ = 12143707 is a prime.

It is a super-3 number, since 3×12143963³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12143969) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 467063 + ... + 467088.

It is an arithmetic number, because the mean of its divisors is an integer number (3269532).

Almost surely, 2^12143963 is an apocalyptic number.

12143963 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12143963 is a deficient number, since it is larger than the sum of its proper divisors (934165).

12143963 is an equidigital number, since it uses as much as digits as its factorization.

12143963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934164.

The product of its digits is 3888, while the sum is 29.

The square root of 12143963 is about 3484.8189336033. The cubic root of 12143963 is about 229.8547476072.

The spelling of 12143963 in words is "twelve million, one hundred forty-three thousand, nine hundred sixty-three".