1206851 has 4 divisors (see below), whose sum is σ = 1218672. Its totient is φ = 1195032.

The previous prime is 1206841. The next prime is 1206869. The reversal of 1206851 is 1586021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1586021 = 241 ⋅6581.

It is a cyclic number.

It is not a de Polignac number, because 1206851 - 2¹⁴ = 1190467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1206841) 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, 5756 + ... + 5961.

It is an arithmetic number, because the mean of its divisors is an integer number (304668).

2^1206851 is an apocalyptic number.

1206851 is a deficient number, since it is larger than the sum of its proper divisors (11821).

1206851 is a wasteful number, since it uses less digits than its factorization.

1206851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11820.

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 1206851 is about 1098.5677038763. The cubic root of 1206851 is about 106.4677031091.

The spelling of 1206851 in words is "one million, two hundred six thousand, eight hundred fifty-one".