1306506 has 32 divisors (see below), whose sum is σ = 2757888. Its totient is φ = 412160.

The previous prime is 1306499. The next prime is 1306517. The reversal of 1306506 is 6056031.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11506 + ... + 11618.

It is an arithmetic number, because the mean of its divisors is an integer number (86184).

2^1306506 is an apocalyptic number.

1306506 is an abundant number, since it is smaller than the sum of its proper divisors (1451382).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1306506 is a wasteful number, since it uses less digits than its factorization.

1306506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 1306506 is about 1143.0249341112. The cubic root of 1306506 is about 109.3210521436.

The spelling of 1306506 in words is "one million, three hundred six thousand, five hundred six".