1306286 has 4 divisors (see below), whose sum is σ = 1959432. Its totient is φ = 653142.

The previous prime is 1306273. The next prime is 1306289. The reversal of 1306286 is 6826031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6826031 = 1621 ⋅4211.

It is a super-2 number, since 2×1306286² = 3412766227592, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1306289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 326570 + ... + 326573.

It is an arithmetic number, because the mean of its divisors is an integer number (489858).

2^1306286 is an apocalyptic number.

1306286 is a deficient number, since it is larger than the sum of its proper divisors (653146).

1306286 is an equidigital number, since it uses as much as digits as its factorization.

1306286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653145.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 1306286 is about 1142.9286941887. The cubic root of 1306286 is about 109.3149156795.

The spelling of 1306286 in words is "one million, three hundred six thousand, two hundred eighty-six".