2122539 has 16 divisors (see below), whose sum is σ = 3025920. Its totient is φ = 1320480.

The previous prime is 2122531. The next prime is 2122553. The reversal of 2122539 is 9352212.

It is not a de Polignac number, because 2122539 - 2³ = 2122531 is a prime.

2122539 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2122531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2304 + ... + 3090.

It is an arithmetic number, because the mean of its divisors is an integer number (189120).

2^2122539 is an apocalyptic number.

2122539 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

2122539 is a deficient number, since it is larger than the sum of its proper divisors (903381).

2122539 is a wasteful number, since it uses less digits than its factorization.

2122539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850.

The product of its digits is 1080, while the sum is 24.

The square root of 2122539 is about 1456.8936131372. The cubic root of 2122539 is about 128.5144295847.

The spelling of 2122539 in words is "two million, one hundred twenty-two thousand, five hundred thirty-nine".