1466645 has 4 divisors (see below), whose sum is σ = 1759980. Its totient is φ = 1173312.

The previous prime is 1466639. The next prime is 1466653. The reversal of 1466645 is 5466641.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5466641 = 463 ⋅11807.

It can be written as a sum of positive squares in 2 ways, for example, as 232324 + 1234321 = 482^2 + 1111^2 .

It is a cyclic number.

It is not a de Polignac number, because 1466645 - 2⁸ = 1466389 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146660 + ... + 146669.

It is an arithmetic number, because the mean of its divisors is an integer number (439995).

2^1466645 is an apocalyptic number.

It is an amenable number.

1466645 is a deficient number, since it is larger than the sum of its proper divisors (293335).

1466645 is an equidigital number, since it uses as much as digits as its factorization.

1466645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293334.

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

The square root of 1466645 is about 1211.0511962754. The cubic root of 1466645 is about 113.6165685762.

The spelling of 1466645 in words is "one million, four hundred sixty-six thousand, six hundred forty-five".