2001465 has 24 divisors (see below), whose sum is σ = 3519360. Its totient is φ = 1052064.

The previous prime is 2001463. The next prime is 2001469. The reversal of 2001465 is 5641002.

It is a happy number.

2001465 is a `hidden beast` number, since 200 + 1 + 465 = 666.

It is not a de Polignac number, because 2001465 - 2¹ = 2001463 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001463) 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 23 ways as a sum of consecutive naturals, for example, 3274 + ... + 3836.

It is an arithmetic number, because the mean of its divisors is an integer number (146640).

2^2001465 is an apocalyptic number.

It is an amenable number.

2001465 is a deficient number, since it is larger than the sum of its proper divisors (1517895).

2001465 is a wasteful number, since it uses less digits than its factorization.

2001465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653 (or 650 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 2001465 is about 1414.7314232744. The cubic root of 2001465 is about 126.0228605535.

Adding to 2001465 its reverse (5641002), we get a palindrome (7642467).

The spelling of 2001465 in words is "two million, one thousand, four hundred sixty-five".