162720471 has 16 divisors (see below), whose sum is σ = 223724160. Its totient is φ = 105137760.

The previous prime is 162720449. The next prime is 162720473. The reversal of 162720471 is 174027261.

It is not a de Polignac number, because 162720471 - 2¹⁹ = 162196183 is a prime.

It is a super-3 number, since 3×162720471³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162720473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12085 + ... + 21713.

It is an arithmetic number, because the mean of its divisors is an integer number (13982760).

Almost surely, 2^162720471 is an apocalyptic number.

162720471 is a deficient number, since it is larger than the sum of its proper divisors (61003689).

162720471 is a wasteful number, since it uses less digits than its factorization.

162720471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9806.

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 162720471 is about 12756.1934369153. The cubic root of 162720471 is about 545.9431202404.

The spelling of 162720471 in words is "one hundred sixty-two million, seven hundred twenty thousand, four hundred seventy-one".