1206611 has 4 divisors (see below), whose sum is σ = 1378992. Its totient is φ = 1034232.

The previous prime is 1206587. The next prime is 1206619. The reversal of 1206611 is 1166021.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1206611 - 2¹⁸ = 944467 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1206611.

It is not an unprimeable number, because it can be changed into a prime (1206619) 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, 86180 + ... + 86193.

It is an arithmetic number, because the mean of its divisors is an integer number (344748).

2^1206611 is an apocalyptic number.

1206611 is a deficient number, since it is larger than the sum of its proper divisors (172381).

1206611 is an equidigital number, since it uses as much as digits as its factorization.

1206611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172380.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1206611 is about 1098.4584653049. The cubic root of 1206611 is about 106.4606450871.

The spelling of 1206611 in words is "one million, two hundred six thousand, six hundred eleven".