2124845 has 8 divisors (see below), whose sum is σ = 2609376. Its totient is φ = 1660176.

The previous prime is 2124841. The next prime is 2124853. The reversal of 2124845 is 5484212.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2124845 - 2² = 2124841 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2124841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4727 + ... + 5156.

It is an arithmetic number, because the mean of its divisors is an integer number (326172).

2^2124845 is an apocalyptic number.

It is an amenable number.

2124845 is a deficient number, since it is larger than the sum of its proper divisors (484531).

2124845 is an equidigital number, since it uses as much as digits as its factorization.

2124845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9931.

The product of its digits is 2560, while the sum is 26.

The square root of 2124845 is about 1457.6848081804. The cubic root of 2124845 is about 128.5609535852.

The spelling of 2124845 in words is "two million, one hundred twenty-four thousand, eight hundred forty-five".