75213065 has 16 divisors (see below), whose sum is σ = 92984976. Its totient is φ = 58368000.

The previous prime is 75213041. The next prime is 75213067. The reversal of 75213065 is 56031257.

It can be written as a sum of positive squares in 8 ways, for example, as 33790969 + 41422096 = 5813^2 + 6436^2 .

It is not a de Polignac number, because 75213065 - 2¹⁶ = 75147529 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (75213067) 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 15 ways as a sum of consecutive naturals, for example, 38615 + ... + 40515.

It is an arithmetic number, because the mean of its divisors is an integer number (5811561).

Almost surely, 2^75213065 is an apocalyptic number.

It is an amenable number.

75213065 is a deficient number, since it is larger than the sum of its proper divisors (17771911).

75213065 is a wasteful number, since it uses less digits than its factorization.

75213065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2140.

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 75213065 is about 8672.5466271448. The cubic root of 75213065 is about 422.1153017072.

The spelling of 75213065 in words is "seventy-five million, two hundred thirteen thousand, sixty-five".