75303245 has 4 divisors (see below), whose sum is σ = 90363900. Its totient is φ = 60242592.

The previous prime is 75303211. The next prime is 75303257. The reversal of 75303245 is 54230357.

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 55071241 + 20232004 = 7421^2 + 4498^2 .

It is a cyclic number.

It is not a de Polignac number, because 75303245 - 2¹⁰ = 75302221 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7530320 + ... + 7530329.

It is an arithmetic number, because the mean of its divisors is an integer number (22590975).

Almost surely, 2^75303245 is an apocalyptic number.

It is an amenable number.

75303245 is a deficient number, since it is larger than the sum of its proper divisors (15060655).

75303245 is a wasteful number, since it uses less digits than its factorization.

75303245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15060654.

The product of its (nonzero) digits is 12600, while the sum is 29.

The square root of 75303245 is about 8677.7442345347. The cubic root of 75303245 is about 422.2839388726.

The spelling of 75303245 in words is "seventy-five million, three hundred three thousand, two hundred forty-five".