75066143 has 4 divisors (see below), whose sum is σ = 75121200. Its totient is φ = 75011088.

The previous prime is 75066139. The next prime is 75066151. The reversal of 75066143 is 34166057.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34166057 = 1319 ⋅25903.

It is a cyclic number.

It is not a de Polignac number, because 75066143 - 2² = 75066139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75066133) 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, 25430 + ... + 28227.

It is an arithmetic number, because the mean of its divisors is an integer number (18780300).

Almost surely, 2^75066143 is an apocalyptic number.

75066143 is a deficient number, since it is larger than the sum of its proper divisors (55057).

75066143 is a wasteful number, since it uses less digits than its factorization.

75066143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55056.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 75066143 is about 8664.0719641517. The cubic root of 75066143 is about 421.8402677067.

The spelling of 75066143 in words is "seventy-five million, sixty-six thousand, one hundred forty-three".