12100142 has 8 divisors (see below), whose sum is σ = 18262056. Its totient is φ = 6012792.

The previous prime is 12100111. The next prime is 12100159. The reversal of 12100142 is 24100121.

12100142 is nontrivially palindromic in base 13.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18233 + ... + 18884.

It is an arithmetic number, because the mean of its divisors is an integer number (2282757).

Almost surely, 2^12100142 is an apocalyptic number.

12100142 is a deficient number, since it is larger than the sum of its proper divisors (6161914).

12100142 is a wasteful number, since it uses less digits than its factorization.

12100142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37282.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 12100142 is about 3478.5258371902. The cubic root of 12100142 is about 229.5779405330.

Adding to 12100142 its reverse (24100121), we get a palindrome (36200263).

The spelling of 12100142 in words is "twelve million, one hundred thousand, one hundred forty-two".