75071443 has 4 divisors (see below), whose sum is σ = 75532168. Its totient is φ = 74610720.

The previous prime is 75071393. The next prime is 75071449. The reversal of 75071443 is 34417057.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34417057 = 1201 ⋅28657.

It is a cyclic number.

It is not a de Polignac number, because 75071443 - 2²⁵ = 41517011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75071449) 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, 230118 + ... + 230443.

It is an arithmetic number, because the mean of its divisors is an integer number (18883042).

Almost surely, 2^75071443 is an apocalyptic number.

75071443 is a deficient number, since it is larger than the sum of its proper divisors (460725).

75071443 is a wasteful number, since it uses less digits than its factorization.

75071443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460724.

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 75071443 is about 8664.3778195552. The cubic root of 75071443 is about 421.8501953994.

The spelling of 75071443 in words is "seventy-five million, seventy-one thousand, four hundred forty-three".