7275205 has 16 divisors (see below), whose sum is σ = 10074240. Its totient is φ = 4940352.

The previous prime is 7275197. The next prime is 7275209. The reversal of 7275205 is 5025727.

7275205 = 63² + 64² + ... + 280².

7275205 is a nontrivial binomial coefficient, being equal to C(3815, 2).

It is a cyclic number.

It is not a de Polignac number, because 7275205 - 2³ = 7275197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7275209) 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 15 ways as a sum of consecutive naturals, for example, 2862 + ... + 4768.

It is an arithmetic number, because the mean of its divisors is an integer number (629640).

Almost surely, 2^7275205 is an apocalyptic number.

7275205 is the 3814-th triangular number.

7275205 is the 1272-nd centered nonagonal number.

It is an amenable number.

7275205 is a deficient number, since it is larger than the sum of its proper divisors (2799035).

7275205 is a wasteful number, since it uses less digits than its factorization.

7275205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2028.

The product of its (nonzero) digits is 4900, while the sum is 28.

The square root of 7275205 is about 2697.2587936644. The cubic root of 7275205 is about 193.7678609965.

The spelling of 7275205 in words is "seven million, two hundred seventy-five thousand, two hundred five".