12143953 has 8 divisors (see below), whose sum is σ = 12611880. Its totient is φ = 11679360.

The previous prime is 12143939. The next prime is 12143969. The reversal of 12143953 is 35934121.

12143953 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1723969 + 10419984 = 1313^2 + 3228^2 .

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 12143953 - 2⁹ = 12143441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12143993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8533 + ... + 9853.

It is an arithmetic number, because the mean of its divisors is an integer number (1576485).

Almost surely, 2^12143953 is an apocalyptic number.

It is an amenable number.

12143953 is a deficient number, since it is larger than the sum of its proper divisors (467927).

12143953 is a wasteful number, since it uses less digits than its factorization.

12143953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1667.

The product of its digits is 3240, while the sum is 28.

The square root of 12143953 is about 3484.8174988082. The cubic root of 12143953 is about 229.8546845156.

The spelling of 12143953 in words is "twelve million, one hundred forty-three thousand, nine hundred fifty-three".