2122545 has 16 divisors (see below), whose sum is σ = 3445632. Its totient is φ = 1115520.

The previous prime is 2122531. The next prime is 2122553. The reversal of 2122545 is 5452212.

It is a happy number.

It is not a de Polignac number, because 2122545 - 2⁵ = 2122513 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69 + ... + 2061.

It is an arithmetic number, because the mean of its divisors is an integer number (215352).

2^2122545 is an apocalyptic number.

It is an amenable number.

2122545 is a deficient number, since it is larger than the sum of its proper divisors (1323087).

2122545 is a wasteful number, since it uses less digits than its factorization.

2122545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2072.

The product of its digits is 800, while the sum is 21.

The square root of 2122545 is about 1456.8956723115. The cubic root of 2122545 is about 128.5145506796.

Adding to 2122545 its reverse (5452212), we get a palindrome (7574757).

The spelling of 2122545 in words is "two million, one hundred twenty-two thousand, five hundred forty-five".