75146517 has 6 divisors (see below), whose sum is σ = 108544982. Its totient is φ = 50097672.

The previous prime is 75146483. The next prime is 75146531. The reversal of 75146517 is 71564157.

It can be written as a sum of positive squares in only one way, i.e., 70711281 + 4435236 = 8409^2 + 2106^2 .

It is not a de Polignac number, because 75146517 - 2⁷ = 75146389 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 (75146557) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 4174798 + ... + 4174815.

Almost surely, 2^75146517 is an apocalyptic number.

It is an amenable number.

75146517 is a deficient number, since it is larger than the sum of its proper divisors (33398465).

75146517 is a wasteful number, since it uses less digits than its factorization.

75146517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8349619 (or 8349616 counting only the distinct ones).

The product of its digits is 29400, while the sum is 36.

The square root of 75146517 is about 8668.7090734434. The cubic root of 75146517 is about 421.9907700713.

The spelling of 75146517 in words is "seventy-five million, one hundred forty-six thousand, five hundred seventeen".