75145017 has 4 divisors (see below), whose sum is σ = 100193360. Its totient is φ = 50096676.

The previous prime is 75145009. The next prime is 75145033. The reversal of 75145017 is 71054157.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 75145017 - 2³ = 75145009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75149017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12524167 + ... + 12524172.

It is an arithmetic number, because the mean of its divisors is an integer number (25048340).

Almost surely, 2^75145017 is an apocalyptic number.

It is an amenable number.

75145017 is a deficient number, since it is larger than the sum of its proper divisors (25048343).

75145017 is a wasteful number, since it uses less digits than its factorization.

75145017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25048342.

The product of its (nonzero) digits is 4900, while the sum is 30.

The square root of 75145017 is about 8668.6225549392. The cubic root of 75145017 is about 421.9879622660.

The spelling of 75145017 in words is "seventy-five million, one hundred forty-five thousand, seventeen".