2123835 has 32 divisors (see below), whose sum is σ = 3939840. Its totient is φ = 956928.

The previous prime is 2123831. The next prime is 2123851. The reversal of 2123835 is 5383212.

It is not a de Polignac number, because 2123835 - 2² = 2123831 is a prime.

2123835 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2123831) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11776 + ... + 11954.

It is an arithmetic number, because the mean of its divisors is an integer number (123120).

2^2123835 is an apocalyptic number.

2123835 is a deficient number, since it is larger than the sum of its proper divisors (1816005).

2123835 is a wasteful number, since it uses less digits than its factorization.

2123835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307.

The product of its digits is 1440, while the sum is 24.

The square root of 2123835 is about 1457.3383272254. The cubic root of 2123835 is about 128.5405807828.

The spelling of 2123835 in words is "two million, one hundred twenty-three thousand, eight hundred thirty-five".