1306659 has 4 divisors (see below), whose sum is σ = 1742216. Its totient is φ = 871104.

The previous prime is 1306633. The next prime is 1306661. The reversal of 1306659 is 9566031.

It is a happy number.

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

It is not a de Polignac number, because 1306659 - 2¹² = 1302563 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1306159) 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, 217774 + ... + 217779.

It is an arithmetic number, because the mean of its divisors is an integer number (435554).

2^1306659 is an apocalyptic number.

1306659 is a deficient number, since it is larger than the sum of its proper divisors (435557).

1306659 is an equidigital number, since it uses as much as digits as its factorization.

1306659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435556.

The product of its (nonzero) digits is 4860, while the sum is 30.

The square root of 1306659 is about 1143.0918598258. The cubic root of 1306659 is about 109.3253193693.

The spelling of 1306659 in words is "one million, three hundred six thousand, six hundred fifty-nine".