162005143 has 2 divisors, whose sum is σ = 162005144. Its totient is φ = 162005142.

The previous prime is 162005071. The next prime is 162005147. The reversal of 162005143 is 341500261.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 162005143 - 2⁹ = 162004631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (162005147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81002571 + 81002572.

It is an arithmetic number, because the mean of its divisors is an integer number (81002572).

Almost surely, 2^162005143 is an apocalyptic number.

162005143 is a deficient number, since it is larger than the sum of its proper divisors (1).

162005143 is an equidigital number, since it uses as much as digits as its factorization.

162005143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 162005143 is about 12728.1240958752. The cubic root of 162005143 is about 545.1419465856.

The spelling of 162005143 in words is "one hundred sixty-two million, five thousand, one hundred forty-three".