1356206 has 4 divisors (see below), whose sum is σ = 2034312. Its totient is φ = 678102.

The previous prime is 1356197. The next prime is 1356221. The reversal of 1356206 is 6026531.

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

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 339050 + ... + 339053.

It is an arithmetic number, because the mean of its divisors is an integer number (508578).

2^1356206 is an apocalyptic number.

1356206 is a deficient number, since it is larger than the sum of its proper divisors (678106).

1356206 is an equidigital number, since it uses as much as digits as its factorization.

1356206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678105.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 1356206 is about 1164.5625788252. The cubic root of 1356206 is about 110.6900424000.

The spelling of 1356206 in words is "one million, three hundred fifty-six thousand, two hundred six".