75012443 has 4 divisors (see below), whose sum is σ = 81831768. Its totient is φ = 68193120.

The previous prime is 75012439. The next prime is 75012461. The reversal of 75012443 is 34421057.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 75012443 - 2² = 75012439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75012433) 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, 3409646 + ... + 3409667.

It is an arithmetic number, because the mean of its divisors is an integer number (20457942).

Almost surely, 2^75012443 is an apocalyptic number.

75012443 is a deficient number, since it is larger than the sum of its proper divisors (6819325).

75012443 is a wasteful number, since it uses less digits than its factorization.

75012443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6819324.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 75012443 is about 8660.9724049901. The cubic root of 75012443 is about 421.7396532116.

The spelling of 75012443 in words is "seventy-five million, twelve thousand, four hundred forty-three".