5121205 has 8 divisors (see below), whose sum is σ = 6206904. Its totient is φ = 4056000.

The previous prime is 5121191. The next prime is 5121209. The reversal of 5121205 is 5021215.

It can be written as a sum of positive squares in 4 ways, for example, as 935089 + 4186116 = 967^2 + 2046^2 .

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

It is not a de Polignac number, because 5121205 - 2⁵ = 5121173 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 (5121209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4566 + ... + 5575.

It is an arithmetic number, because the mean of its divisors is an integer number (775863).

Almost surely, 2^5121205 is an apocalyptic number.

It is an amenable number.

5121205 is a deficient number, since it is larger than the sum of its proper divisors (1085699).

5121205 is a wasteful number, since it uses less digits than its factorization.

5121205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10247.

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 5121205 is about 2263.0079540293. The cubic root of 5121205 is about 172.3682954638.

The spelling of 5121205 in words is "five million, one hundred twenty-one thousand, two hundred five".