2124745 has 16 divisors (see below), whose sum is σ = 3086208. Its totient is φ = 1370880.

The previous prime is 2124679. The next prime is 2124757. The reversal of 2124745 is 5474212.

It is not a de Polignac number, because 2124745 - 2⁹ = 2124233 is a prime.

It is a Duffinian 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, 1191 + ... + 2380.

It is an arithmetic number, because the mean of its divisors is an integer number (192888).

2^2124745 is an apocalyptic number.

It is an amenable number.

2124745 is a deficient number, since it is larger than the sum of its proper divisors (961463).

2124745 is a wasteful number, since it uses less digits than its factorization.

2124745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3600.

The product of its digits is 2240, while the sum is 25.

The square root of 2124745 is about 1457.6505068088. The cubic root of 2124745 is about 128.5589367640.

Adding to 2124745 its reverse (5474212), we get a palindrome (7598957).

The spelling of 2124745 in words is "two million, one hundred twenty-four thousand, seven hundred forty-five".