2124047 has 4 divisors (see below), whose sum is σ = 2197320. Its totient is φ = 2050776.

The previous prime is 2124043. The next prime is 2124049. The reversal of 2124047 is 7404212.

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 2124047 - 2² = 2124043 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 (2124041) 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, 36593 + ... + 36650.

It is an arithmetic number, because the mean of its divisors is an integer number (549330).

2^2124047 is an apocalyptic number.

2124047 is a deficient number, since it is larger than the sum of its proper divisors (73273).

2124047 is an equidigital number, since it uses as much as digits as its factorization.

2124047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73272.

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 2124047 is about 1457.4110607512. The cubic root of 2124047 is about 128.5448575897.

Adding to 2124047 its reverse (7404212), we get a palindrome (9528259).

The spelling of 2124047 in words is "two million, one hundred twenty-four thousand, forty-seven".