2122517 has 4 divisors (see below), whose sum is σ = 2125920. Its totient is φ = 2119116.

The previous prime is 2122513. The next prime is 2122531. The reversal of 2122517 is 7152212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2122517 - 2² = 2122513 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 467 + ... + 2112.

It is an arithmetic number, because the mean of its divisors is an integer number (531480).

2^2122517 is an apocalyptic number.

It is an amenable number.

2122517 is a deficient number, since it is larger than the sum of its proper divisors (3403).

2122517 is an equidigital number, since it uses as much as digits as its factorization.

2122517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3402.

The product of its digits is 280, while the sum is 20.

The square root of 2122517 is about 1456.8860628066. The cubic root of 2122517 is about 128.5139855682.

Adding to 2122517 its reverse (7152212), we get a palindrome (9274729).

It can be divided in two parts, 21225 and 17, that multiplied together give a triangular number (360825 = T₈₄₉).

The spelling of 2122517 in words is "two million, one hundred twenty-two thousand, five hundred seventeen".