4121205 has 16 divisors (see below), whose sum is σ = 7193664. Its totient is φ = 1998080.

The previous prime is 4121203. The next prime is 4121213. The reversal of 4121205 is 5021214.

It is not a de Polignac number, because 4121205 - 2¹ = 4121203 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4121203) 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, 12324 + ... + 12653.

It is an arithmetic number, because the mean of its divisors is an integer number (449604).

Almost surely, 2^4121205 is an apocalyptic number.

It is an amenable number.

4121205 is a deficient number, since it is larger than the sum of its proper divisors (3072459).

4121205 is a wasteful number, since it uses less digits than its factorization.

4121205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24996.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 4121205 is about 2030.0751217627. The cubic root of 4121205 is about 160.3275192165.

Adding to 4121205 its reverse (5021214), we get a palindrome (9142419).

Subtracting 4121205 from its reverse (5021214), we obtain a palindrome (900009).

The spelling of 4121205 in words is "four million, one hundred twenty-one thousand, two hundred five".