75408143 has 8 divisors (see below), whose sum is σ = 77973840. Its totient is φ = 72877120.

The previous prime is 75408133. The next prime is 75408173. The reversal of 75408143 is 34180457.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 75408143 - 2⁶ = 75408079 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 (75408133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4208 + ... + 12981.

It is an arithmetic number, because the mean of its divisors is an integer number (9746730).

Almost surely, 2^75408143 is an apocalyptic number.

75408143 is a deficient number, since it is larger than the sum of its proper divisors (2565697).

75408143 is a wasteful number, since it uses less digits than its factorization.

75408143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17337.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 75408143 is about 8683.7862133979. The cubic root of 75408143 is about 422.4799294879.

The spelling of 75408143 in words is "seventy-five million, four hundred eight thousand, one hundred forty-three".