662541143 has 4 divisors (see below), whose sum is σ = 722772168. Its totient is φ = 602310120.

The previous prime is 662541133. The next prime is 662541167. The reversal of 662541143 is 341145266.

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 662541143 - 2¹⁸ = 662278999 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 (662541133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30115496 + ... + 30115517.

It is an arithmetic number, because the mean of its divisors is an integer number (180693042).

Almost surely, 2^662541143 is an apocalyptic number.

662541143 is a deficient number, since it is larger than the sum of its proper divisors (60231025).

662541143 is a wasteful number, since it uses less digits than its factorization.

662541143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60231024.

The product of its digits is 17280, while the sum is 32.

The square root of 662541143 is about 25739.8745723440. The cubic root of 662541143 is about 871.7747463903.

The spelling of 662541143 in words is "six hundred sixty-two million, five hundred forty-one thousand, one hundred forty-three".