75017245 has 8 divisors (see below), whose sum is σ = 90912600. Its totient is φ = 59419200.

The previous prime is 75017231. The next prime is 75017279. The reversal of 75017245 is 54271057.

It can be written as a sum of positive squares in 4 ways, for example, as 50395801 + 24621444 = 7099^2 + 4962^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-75017245 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 7 ways as a sum of consecutive naturals, for example, 73770 + ... + 74779.

It is an arithmetic number, because the mean of its divisors is an integer number (11364075).

Almost surely, 2^75017245 is an apocalyptic number.

It is an amenable number.

75017245 is a deficient number, since it is larger than the sum of its proper divisors (15895355).

75017245 is a wasteful number, since it uses less digits than its factorization.

75017245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148655.

The product of its (nonzero) digits is 9800, while the sum is 31.

The square root of 75017245 is about 8661.2496211574. The cubic root of 75017245 is about 421.7486523879.

The spelling of 75017245 in words is "seventy-five million, seventeen thousand, two hundred forty-five".