1446661 has 4 divisors (see below), whose sum is σ = 1449324. Its totient is φ = 1444000.

The previous prime is 1446659. The next prime is 1446673. The reversal of 1446661 is 1666441.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 42436 + 1404225 = 206^2 + 1185^2 .

It is a 3-Lehmer number, since φ(1446661) divides (1446661-1)³.

It is a cyclic number.

It is not a de Polignac number, because 1446661 - 2¹ = 1446659 is a prime.

It is an Ulam number.

It is a deceptive number, since it divides R_1446660.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1446611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 190 + ... + 1711.

It is an arithmetic number, because the mean of its divisors is an integer number (362331).

2^1446661 is an apocalyptic number.

1446661 is the 761-st heptagonal number.

It is an amenable number.

1446661 is a deficient number, since it is larger than the sum of its proper divisors (2663).

1446661 is an equidigital number, since it uses as much as digits as its factorization.

1446661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2662.

The product of its digits is 3456, while the sum is 28.

The square root of 1446661 is about 1202.7722145111. The cubic root of 1446661 is about 113.0981734868.

The spelling of 1446661 in words is "one million, four hundred forty-six thousand, six hundred sixty-one".