2103142 has 4 divisors (see below), whose sum is σ = 3154716. Its totient is φ = 1051570.

The previous prime is 2103139. The next prime is 2103149. The reversal of 2103142 is 2413012.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2103149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525784 + ... + 525787.

It is an arithmetic number, because the mean of its divisors is an integer number (788679).

2^2103142 is an apocalyptic number.

2103142 is a deficient number, since it is larger than the sum of its proper divisors (1051574).

2103142 is a wasteful number, since it uses less digits than its factorization.

2103142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1051573.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 2103142 is about 1450.2213624133. The cubic root of 2103142 is about 128.1217510181.

Adding to 2103142 its reverse (2413012), we get a palindrome (4516154).

The spelling of 2103142 in words is "two million, one hundred three thousand, one hundred forty-two".