75315205 has 12 divisors (see below), whose sum is σ = 105134220. Its totient is φ = 51644544.

The previous prime is 75315193. The next prime is 75315209. The reversal of 75315205 is 50251357.

It can be written as a sum of positive squares in 2 ways, for example, as 55681444 + 19633761 = 7462^2 + 4431^2 .

It is not a de Polignac number, because 75315205 - 2⁷ = 75315077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75315209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 153460 + ... + 153949.

It is an arithmetic number, because the mean of its divisors is an integer number (8761185).

Almost surely, 2^75315205 is an apocalyptic number.

It is an amenable number.

75315205 is a deficient number, since it is larger than the sum of its proper divisors (29819015).

75315205 is a wasteful number, since it uses less digits than its factorization.

75315205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307428 (or 307421 counting only the distinct ones).

The product of its (nonzero) digits is 5250, while the sum is 28.

The square root of 75315205 is about 8678.4333263556. The cubic root of 75315205 is about 422.3062940338.

The spelling of 75315205 in words is "seventy-five million, three hundred fifteen thousand, two hundred five".