1330705 has 8 divisors (see below), whose sum is σ = 1640232. Its totient is φ = 1035648.

The previous prime is 1330699. The next prime is 1330727. The reversal of 1330705 is 5070331.

It can be written as a sum of positive squares in 4 ways, for example, as 103041 + 1227664 = 321^2 + 1108^2 .

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 1330705 - 2⁷ = 1330577 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a plaindrome in base 13.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3412 + ... + 3781.

It is an arithmetic number, because the mean of its divisors is an integer number (205029).

2^1330705 is an apocalyptic number.

It is an amenable number.

1330705 is a deficient number, since it is larger than the sum of its proper divisors (309527).

1330705 is an equidigital number, since it uses as much as digits as its factorization.

1330705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7235.

The product of its (nonzero) digits is 315, while the sum is 19.

The square root of 1330705 is about 1153.5618752369. The cubic root of 1330705 is about 109.9918726778.

The spelling of 1330705 in words is "one million, three hundred thirty thousand, seven hundred five".