2124105 has 32 divisors (see below), whose sum is σ = 3715200. Its totient is φ = 1032192.

The previous prime is 2124049. The next prime is 2124127. The reversal of 2124105 is 5014212.

It is not a de Polignac number, because 2124105 - 2⁶ = 2124041 is a prime.

It is a super-3 number, since 3×2124105³ = 28750751333077372875, which contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8137 + ... + 8393.

It is an arithmetic number, because the mean of its divisors is an integer number (116100).

2^2124105 is an apocalyptic number.

It is an amenable number.

2124105 is a deficient number, since it is larger than the sum of its proper divisors (1591095).

2124105 is a wasteful number, since it uses less digits than its factorization.

2124105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 2124105 is about 1457.4309589137. The cubic root of 2124105 is about 128.5460276099.

Adding to 2124105 its reverse (5014212), we get a palindrome (7138317).

The spelling of 2124105 in words is "two million, one hundred twenty-four thousand, one hundred five".