75146443 has 4 divisors (see below), whose sum is σ = 79566840. Its totient is φ = 70726048.

The previous prime is 75146441. The next prime is 75146473. The reversal of 75146443 is 34464157.

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 75146443 - 2¹ = 75146441 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 75146399 and 75146408.

It is not an unprimeable number, because it can be changed into a prime (75146441) 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, 2210173 + ... + 2210206.

It is an arithmetic number, because the mean of its divisors is an integer number (19891710).

Almost surely, 2^75146443 is an apocalyptic number.

75146443 is a deficient number, since it is larger than the sum of its proper divisors (4420397).

75146443 is a wasteful number, since it uses less digits than its factorization.

75146443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4420396.

The product of its digits is 40320, while the sum is 34.

The square root of 75146443 is about 8668.7048052174. The cubic root of 75146443 is about 421.9906315538.

The spelling of 75146443 in words is "seventy-five million, one hundred forty-six thousand, four hundred forty-three".