1206069 has 4 divisors (see below), whose sum is σ = 1608096. Its totient is φ = 804044.

The previous prime is 1206061. The next prime is 1206071. The reversal of 1206069 is 9606021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1206069 - 2³ = 1206061 is a prime.

It is a super-2 number, since 2×1206069² = 2909204865522, which contains 22 as substring.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1206061) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 201009 + ... + 201014.

It is an arithmetic number, because the mean of its divisors is an integer number (402024).

2^1206069 is an apocalyptic number.

It is an amenable number.

1206069 is a deficient number, since it is larger than the sum of its proper divisors (402027).

1206069 is an equidigital number, since it uses as much as digits as its factorization.

1206069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402026.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 1206069 is about 1098.2117282200. The cubic root of 1206069 is about 106.4447022766. Note that the first 3 decimals are identical.

The spelling of 1206069 in words is "one million, two hundred six thousand, sixty-nine".