12142055 has 8 divisors (see below), whose sum is σ = 14704800. Its totient is φ = 9624096.

The previous prime is 12142037. The next prime is 12142057. The reversal of 12142055 is 55024121.

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 12142055 - 2⁸ = 12141799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12142057) 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, 10595 + ... + 11684.

It is an arithmetic number, because the mean of its divisors is an integer number (1838100).

Almost surely, 2^12142055 is an apocalyptic number.

12142055 is a deficient number, since it is larger than the sum of its proper divisors (2562745).

12142055 is a wasteful number, since it uses less digits than its factorization.

12142055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22393.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 12142055 is about 3484.5451640063. The cubic root of 12142055 is about 229.8427090926.

Adding to 12142055 its reverse (55024121), we get a palindrome (67166176).

The spelling of 12142055 in words is "twelve million, one hundred forty-two thousand, fifty-five".