1665041 has 8 divisors (see below), whose sum is σ = 1964544. Its totient is φ = 1380960.

The previous prime is 1665029. The next prime is 1665043. The reversal of 1665041 is 1405661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1665041 - 2¹⁰ = 1664017 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1664998 and 1665016.

It is not an unprimeable number, because it can be changed into a prime (1665043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3620 + ... + 4053.

It is an arithmetic number, because the mean of its divisors is an integer number (245568).

2^1665041 is an apocalyptic number.

It is an amenable number.

1665041 is a deficient number, since it is larger than the sum of its proper divisors (299503).

1665041 is an equidigital number, since it uses as much as digits as its factorization.

1665041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7711.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 1665041 is about 1290.3646771359. The cubic root of 1665041 is about 118.5245487902.

The spelling of 1665041 in words is "one million, six hundred sixty-five thousand, forty-one".