2103542 has 16 divisors (see below), whose sum is σ = 3645600. Its totient is φ = 891648.

The previous prime is 2103523. The next prime is 2103553. The reversal of 2103542 is 2453012.

It is a self number, because there is not a number n which added to its sum of digits gives 2103542.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 584 + ... + 2132.

It is an arithmetic number, because the mean of its divisors is an integer number (227850).

2^2103542 is an apocalyptic number.

2103542 is a deficient number, since it is larger than the sum of its proper divisors (1542058).

2103542 is a wasteful number, since it uses less digits than its factorization.

2103542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1655.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 2103542 is about 1450.3592658373. The cubic root of 2103542 is about 128.1298730647.

Adding to 2103542 its reverse (2453012), we get a palindrome (4556554).

The spelling of 2103542 in words is "two million, one hundred three thousand, five hundred forty-two".