4122505 has 4 divisors (see below), whose sum is σ = 4947012. Its totient is φ = 3298000.

The previous prime is 4122493. The next prime is 4122557. The reversal of 4122505 is 5052214.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3013696 + 1108809 = 1736^2 + 1053^2 .

It is a de Polignac number, because none of the positive numbers 2^k-4122505 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 412246 + ... + 412255.

It is an arithmetic number, because the mean of its divisors is an integer number (1236753).

Almost surely, 2^4122505 is an apocalyptic number.

It is an amenable number.

4122505 is a deficient number, since it is larger than the sum of its proper divisors (824507).

4122505 is an equidigital number, since it uses as much as digits as its factorization.

4122505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824506.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 4122505 is about 2030.3952817124. The cubic root of 4122505 is about 160.3443754404.

Adding to 4122505 its reverse (5052214), we get a palindrome (9174719).

The spelling of 4122505 in words is "four million, one hundred twenty-two thousand, five hundred five".