75945073 has 2 divisors, whose sum is σ = 75945074. Its totient is φ = 75945072.

The previous prime is 75945047. The next prime is 75945101. The reversal of 75945073 is 37054957.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69355584 + 6589489 = 8328^2 + 2567^2 .

It is an emirp because it is prime and its reverse (37054957) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 75945073 - 2¹³ = 75936881 is a prime.

It is a super-2 number, since 2×75945073² = 11535308225950658, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (75945173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37972536 + 37972537.

It is an arithmetic number, because the mean of its divisors is an integer number (37972537).

Almost surely, 2^75945073 is an apocalyptic number.

It is an amenable number.

75945073 is a deficient number, since it is larger than the sum of its proper divisors (1).

75945073 is an equidigital number, since it uses as much as digits as its factorization.

75945073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 132300, while the sum is 40.

The square root of 75945073 is about 8714.6470381766. The cubic root of 75945073 is about 423.4802894981.

The spelling of 75945073 in words is "seventy-five million, nine hundred forty-five thousand, seventy-three".