7328143 has 4 divisors (see below), whose sum is σ = 7335328. Its totient is φ = 7320960.

The previous prime is 7328131. The next prime is 7328149. The reversal of 7328143 is 3418237.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7328143 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7328149) 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, 1746 + ... + 4207.

It is an arithmetic number, because the mean of its divisors is an integer number (1833832).

Almost surely, 2^7328143 is an apocalyptic number.

7328143 is a deficient number, since it is larger than the sum of its proper divisors (7185).

7328143 is a wasteful number, since it uses less digits than its factorization.

7328143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7184.

The product of its digits is 4032, while the sum is 28.

The square root of 7328143 is about 2707.0543031125. The cubic root of 7328143 is about 194.2367093254.

The spelling of 7328143 in words is "seven million, three hundred twenty-eight thousand, one hundred forty-three".