12401143 has 8 divisors (see below), whose sum is σ = 13169520. Its totient is φ = 11637120.

The previous prime is 12401141. The next prime is 12401149. The reversal of 12401143 is 34110421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12401143 - 2¹ = 12401141 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 (12401141) 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 7 ways as a sum of consecutive naturals, for example, 6253 + ... + 7993.

It is an arithmetic number, because the mean of its divisors is an integer number (1646190).

Almost surely, 2^12401143 is an apocalyptic number.

12401143 is a deficient number, since it is larger than the sum of its proper divisors (768377).

12401143 is a wasteful number, since it uses less digits than its factorization.

12401143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2177.

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

The square root of 12401143 is about 3521.5256636861. The cubic root of 12401143 is about 231.4660169956.

Adding to 12401143 its reverse (34110421), we get a palindrome (46511564).

It can be divided in two parts, 12401 and 143, that added together give a square (12544 = 112²).

The spelling of 12401143 in words is "twelve million, four hundred one thousand, one hundred forty-three".