2124871 has 4 divisors (see below), whose sum is σ = 2428432. Its totient is φ = 1821312.

The previous prime is 2124869. The next prime is 2124877. The reversal of 2124871 is 1784212.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2124871 - 2¹ = 2124869 is a prime.

It is a Duffinian number.

2124871 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2124877) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151770 + ... + 151783.

It is an arithmetic number, because the mean of its divisors is an integer number (607108).

2^2124871 is an apocalyptic number.

2124871 is a deficient number, since it is larger than the sum of its proper divisors (303561).

2124871 is an equidigital number, since it uses as much as digits as its factorization.

2124871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303560.

The product of its digits is 896, while the sum is 25.

The square root of 2124871 is about 1457.6937264048. The cubic root of 2124871 is about 128.5614779483.

The spelling of 2124871 in words is "two million, one hundred twenty-four thousand, eight hundred seventy-one".