2122563 has 8 divisors (see below), whose sum is σ = 2842128. Its totient is φ = 1409024.

The previous prime is 2122553. The next prime is 2122573. The reversal of 2122563 is 3652212.

It is an interprime number because it is at equal distance from previous prime (2122553) and next prime (2122573).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2122563 - 2⁵ = 2122531 is a prime.

It is a d-powerful number, because it can be written as 2⁸ + 1 + 2¹⁰ + 2²¹ + 5⁶ + 6⁵ + 3⁶ .

2122563 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2122513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 606 + ... + 2147.

It is an arithmetic number, because the mean of its divisors is an integer number (355266).

2^2122563 is an apocalyptic number.

2122563 is a deficient number, since it is larger than the sum of its proper divisors (719565).

2122563 is a wasteful number, since it uses less digits than its factorization.

2122563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3013.

The product of its digits is 720, while the sum is 21.

The square root of 2122563 is about 1456.9018498169. The cubic root of 2122563 is about 128.5149139629.

Adding to 2122563 its reverse (3652212), we get a palindrome (5774775).

It can be divided in two parts, 212 and 2563, that added together give a triangular number (2775 = T₇₄).

The spelling of 2122563 in words is "two million, one hundred twenty-two thousand, five hundred sixty-three".