662145 has 16 divisors (see below), whose sum is σ = 1156032. Its totient is φ = 320960.

The previous prime is 662143. The next prime is 662149. The reversal of 662145 is 541266.

It is not a de Polignac number, because 662145 - 2¹ = 662143 is a prime.

662145 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (662141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1842 + ... + 2171.

It is an arithmetic number, because the mean of its divisors is an integer number (72252).

2⁶⁶²¹⁴⁵ is an apocalyptic number.

It is an amenable number.

662145 is a deficient number, since it is larger than the sum of its proper divisors (493887).

662145 is a wasteful number, since it uses less digits than its factorization.

662145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4032.

The product of its digits is 1440, while the sum is 24.

The square root of 662145 is about 813.7229258169. The cubic root of 662145 is about 87.1600962810.

It can be divided in two parts, 6621 and 45, that added together give a palindrome (6666).

The spelling of 662145 in words is "six hundred sixty-two thousand, one hundred forty-five".