12143401 has 4 divisors (see below), whose sum is σ = 12169872. Its totient is φ = 12116932.

The previous prime is 12143387. The next prime is 12143407. The reversal of 12143401 is 10434121.

12143401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12143401 is a prime.

It is a super-3 number, since 3×12143401³ (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 (12143407) 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, 12535 + ... + 13468.

It is an arithmetic number, because the mean of its divisors is an integer number (3042468).

Almost surely, 2^12143401 is an apocalyptic number.

It is an amenable number.

12143401 is a deficient number, since it is larger than the sum of its proper divisors (26471).

12143401 is an equidigital number, since it uses as much as digits as its factorization.

12143401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26470.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 12143401 is about 3484.7382972040. The cubic root of 12143401 is about 229.8512018026.

Adding to 12143401 its reverse (10434121), we get a palindrome (22577522).

It can be divided in two parts, 12143 and 401, that added together give a square (12544 = 112²).

The spelling of 12143401 in words is "twelve million, one hundred forty-three thousand, four hundred one".