2124775 has 6 divisors (see below), whose sum is σ = 2634752. Its totient is φ = 1699800.

The previous prime is 2124769. The next prime is 2124791. The reversal of 2124775 is 5774212.

It is a de Polignac number, because none of the positive numbers 2^k-2124775 is a prime.

It is a Duffinian number.

2124775 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 42471 + ... + 42520.

2^2124775 is an apocalyptic number.

2124775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2124775 is a deficient number, since it is larger than the sum of its proper divisors (509977).

2124775 is an equidigital number, since it uses as much as digits as its factorization.

2124775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85001 (or 84996 counting only the distinct ones).

The product of its digits is 3920, while the sum is 28.

The square root of 2124775 is about 1457.6607973051. The cubic root of 2124775 is about 128.5595418170.

Adding to 2124775 its reverse (5774212), we get a palindrome (7898987).

The spelling of 2124775 in words is "two million, one hundred twenty-four thousand, seven hundred seventy-five".