2130542 has 16 divisors (see below), whose sum is σ = 3411072. Its totient is φ = 994560.

The previous prime is 2130539. The next prime is 2130577. The reversal of 2130542 is 2450312.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 2130542.

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, 7442 + ... + 7722.

It is an arithmetic number, because the mean of its divisors is an integer number (213192).

2^2130542 is an apocalyptic number.

2130542 is a deficient number, since it is larger than the sum of its proper divisors (1280530).

2130542 is a wasteful number, since it uses less digits than its factorization.

2130542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523.

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

The square root of 2130542 is about 1459.6376262621. The cubic root of 2130542 is about 128.6757475522.

Adding to 2130542 its reverse (2450312), we get a palindrome (4580854).

The spelling of 2130542 in words is "two million, one hundred thirty thousand, five hundred forty-two".