75030143 has 4 divisors (see below), whose sum is σ = 75508200. Its totient is φ = 74552088.

The previous prime is 75030127. The next prime is 75030149. The reversal of 75030143 is 34103057.

It is a happy number.

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 75030143 - 2⁴ = 75030127 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 (75030149) 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, 238793 + ... + 239106.

It is an arithmetic number, because the mean of its divisors is an integer number (18877050).

Almost surely, 2^75030143 is an apocalyptic number.

75030143 is a deficient number, since it is larger than the sum of its proper divisors (478057).

75030143 is a wasteful number, since it uses less digits than its factorization.

75030143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478056.

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 75030143 is about 8661.9941699357. The cubic root of 75030143 is about 421.7728219523.

The spelling of 75030143 in words is "seventy-five million, thirty thousand, one hundred forty-three".