2124587 has 4 divisors (see below), whose sum is σ = 2174040. Its totient is φ = 2075136.

The previous prime is 2124571. The next prime is 2124589. The reversal of 2124587 is 7854212.

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 2124587 - 2⁴ = 2124571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2124589) 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, 24662 + ... + 24747.

It is an arithmetic number, because the mean of its divisors is an integer number (543510).

2^2124587 is an apocalyptic number.

2124587 is a deficient number, since it is larger than the sum of its proper divisors (49453).

2124587 is an equidigital number, since it uses as much as digits as its factorization.

2124587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49452.

The product of its digits is 4480, while the sum is 29.

The square root of 2124587 is about 1457.5963089964. The cubic root of 2124587 is about 128.5557500576. Note that the first 3 decimals are identical.

Adding to 2124587 its reverse (7854212), we get a palindrome (9978799).

The spelling of 2124587 in words is "two million, one hundred twenty-four thousand, five hundred eighty-seven".