75031065 has 12 divisors (see below), whose sum is σ = 130053924. Its totient is φ = 40016544.

The previous prime is 75031063. The next prime is 75031069. The reversal of 75031065 is 56013057.

It can be written as a sum of positive squares in 2 ways, for example, as 58798224 + 16232841 = 7668^2 + 4029^2 .

It is not a de Polignac number, because 75031065 - 2¹ = 75031063 is a prime.

It is not an unprimeable number, because it can be changed into a prime (75031063) 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, 833634 + ... + 833723.

It is an arithmetic number, because the mean of its divisors is an integer number (10837827).

Almost surely, 2^75031065 is an apocalyptic number.

It is an amenable number.

75031065 is a deficient number, since it is larger than the sum of its proper divisors (55022859).

75031065 is a wasteful number, since it uses less digits than its factorization.

75031065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1667368 (or 1667365 counting only the distinct ones).

The product of its (nonzero) digits is 3150, while the sum is 27.

The square root of 75031065 is about 8662.0473907732. The cubic root of 75031065 is about 421.7745495821.

The spelling of 75031065 in words is "seventy-five million, thirty-one thousand, sixty-five".