2100142 has 8 divisors (see below), whose sum is σ = 3436632. Its totient is φ = 954600.

The previous prime is 2100121. The next prime is 2100167. The reversal of 2100142 is 2410012.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47709 + ... + 47752.

It is an arithmetic number, because the mean of its divisors is an integer number (429579).

2^2100142 is an apocalyptic number.

2100142 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2100142 is a deficient number, since it is larger than the sum of its proper divisors (1336490).

2100142 is a wasteful number, since it uses less digits than its factorization.

2100142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95474.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 2100142 is about 1449.1866684454. The cubic root of 2100142 is about 128.0608028185.

Adding to 2100142 its reverse (2410012), we get a palindrome (4510154).

The spelling of 2100142 in words is "two million, one hundred thousand, one hundred forty-two".