1206481667 has 4 divisors (see below), whose sum is σ = 1207952016. Its totient is φ = 1205011320.

The previous prime is 1206481643. The next prime is 1206481669. The reversal of 1206481667 is 7661846021.

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 1206481667 - 2¹⁴ = 1206465283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1206481669) 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, 733943 + ... + 735584.

It is an arithmetic number, because the mean of its divisors is an integer number (301988004).

Almost surely, 2^1206481667 is an apocalyptic number.

1206481667 is a deficient number, since it is larger than the sum of its proper divisors (1470349).

1206481667 is an equidigital number, since it uses as much as digits as its factorization.

1206481667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1470348.

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 1206481667 is about 34734.4449646169. Note that the first 3 decimals coincide. The cubic root of 1206481667 is about 1064.5684121916.

The spelling of 1206481667 in words is "one billion, two hundred six million, four hundred eighty-one thousand, six hundred sixty-seven".