2124542 has 32 divisors (see below), whose sum is σ = 3936000. Its totient is φ = 857304.

The previous prime is 2124517. The next prime is 2124553. The reversal of 2124542 is 2454212.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12953 + ... + 13115.

It is an arithmetic number, because the mean of its divisors is an integer number (123000).

2^2124542 is an apocalyptic number.

2124542 is a deficient number, since it is larger than the sum of its proper divisors (1811458).

2124542 is a wasteful number, since it uses less digits than its factorization.

2124542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205 (or 191 counting only the distinct ones).

The product of its digits is 640, while the sum is 20.

The square root of 2124542 is about 1457.5808725419. The cubic root of 2124542 is about 128.5548424224.

Adding to 2124542 its reverse (2454212), we get a palindrome (4578754).

The spelling of 2124542 in words is "two million, one hundred twenty-four thousand, five hundred forty-two".