1481665 has 8 divisors (see below), whose sum is σ = 1826280. Its totient is φ = 1153152.

The previous prime is 1481663. The next prime is 1481671. The reversal of 1481665 is 5661841.

It can be written as a sum of positive squares in 4 ways, for example, as 505521 + 976144 = 711^2 + 988^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1481665 - 2¹ = 1481663 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1481663) 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 7 ways as a sum of consecutive naturals, for example, 3820 + ... + 4189.

It is an arithmetic number, because the mean of its divisors is an integer number (228285).

2^1481665 is an apocalyptic number.

It is an amenable number.

1481665 is a deficient number, since it is larger than the sum of its proper divisors (344615).

1481665 is an equidigital number, since it uses as much as digits as its factorization.

1481665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8051.

The product of its digits is 5760, while the sum is 31.

The square root of 1481665 is about 1217.2366244901. The cubic root of 1481665 is about 114.0031034345.

The spelling of 1481665 in words is "one million, four hundred eighty-one thousand, six hundred sixty-five".