75338143 has 4 divisors (see below), whose sum is σ = 77936040. Its totient is φ = 72740248.

The previous prime is 75338099. The next prime is 75338189. The reversal of 75338143 is 34183357.

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 75338143 - 2¹⁷ = 75207071 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 75338099 and 75338108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75333143) 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, 1298905 + ... + 1298962.

It is an arithmetic number, because the mean of its divisors is an integer number (19484010).

Almost surely, 2^75338143 is an apocalyptic number.

75338143 is a deficient number, since it is larger than the sum of its proper divisors (2597897).

75338143 is a wasteful number, since it uses less digits than its factorization.

75338143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2597896.

The product of its digits is 30240, while the sum is 34.

The square root of 75338143 is about 8679.7547776421. The cubic root of 75338143 is about 422.3491622193.

It can be divided in two parts, 753381 and 43, that added together give a square (753424 = 868²).

The spelling of 75338143 in words is "seventy-five million, three hundred thirty-eight thousand, one hundred forty-three".