722143 has 8 divisors (see below), whose sum is σ = 773712. Its totient is φ = 671616.

The previous prime is 722123. The next prime is 722147. The reversal of 722143 is 341227.

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 722143 - 2⁹ = 721631 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 722143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1621 + ... + 2017.

It is an arithmetic number, because the mean of its divisors is an integer number (96714).

2⁷²²¹⁴³ is an apocalyptic number.

722143 is a deficient number, since it is larger than the sum of its proper divisors (51569).

722143 is a wasteful number, since it uses less digits than its factorization.

722143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521.

The product of its digits is 336, while the sum is 19.

The square root of 722143 is about 849.7899740524. The cubic root of 722143 is about 89.7169295425.

The spelling of 722143 in words is "seven hundred twenty-two thousand, one hundred forty-three", and thus it is an iban number.