12143055 has 16 divisors (see below), whose sum is σ = 19474560. Its totient is φ = 6461088.

The previous prime is 12143023. The next prime is 12143063. The reversal of 12143055 is 55034121.

It is not a de Polignac number, because 12143055 - 2⁵ = 12143023 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9016 + ... + 10274.

It is an arithmetic number, because the mean of its divisors is an integer number (1217160).

Almost surely, 2^12143055 is an apocalyptic number.

12143055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12143055 is a deficient number, since it is larger than the sum of its proper divisors (7331505).

12143055 is a wasteful number, since it uses less digits than its factorization.

12143055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1910.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 12143055 is about 3484.6886518023. The cubic root of 12143055 is about 229.8490187439.

Adding to 12143055 its reverse (55034121), we get a palindrome (67177176).

The spelling of 12143055 in words is "twelve million, one hundred forty-three thousand, fifty-five".