2101142 has 8 divisors (see below), whose sum is σ = 3288816. Its totient is φ = 1004872.

The previous prime is 2101139. The next prime is 2101157. The reversal of 2101142 is 2411012.

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

It is an Ulam number.

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, 22793 + ... + 22884.

It is an arithmetic number, because the mean of its divisors is an integer number (411102).

2^2101142 is an apocalyptic number.

2101142 is a deficient number, since it is larger than the sum of its proper divisors (1187674).

2101142 is a wasteful number, since it uses less digits than its factorization.

2101142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45702.

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

The square root of 2101142 is about 1449.5316484989. The cubic root of 2101142 is about 128.0811253304.

Adding to 2101142 its reverse (2411012), we get a palindrome (4512154).

The spelling of 2101142 in words is "two million, one hundred one thousand, one hundred forty-two".