1206523273 has 4 divisors (see below), whose sum is σ = 1226972880. Its totient is φ = 1186073668.

The previous prime is 1206523267. The next prime is 1206523301. The reversal of 1206523273 is 3723256021.

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 1206523273 - 2⁹ = 1206522761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1206523573) 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, 10224715 + ... + 10224832.

It is an arithmetic number, because the mean of its divisors is an integer number (306743220).

Almost surely, 2^1206523273 is an apocalyptic number.

It is an amenable number.

1206523273 is a deficient number, since it is larger than the sum of its proper divisors (20449607).

1206523273 is an equidigital number, since it uses as much as digits as its factorization.

1206523273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20449606.

The product of its (nonzero) digits is 15120, while the sum is 31.

The square root of 1206523273 is about 34735.0438750263. The cubic root of 1206523273 is about 1064.5806494059.

Adding to 1206523273 its reverse (3723256021), we get a palindrome (4929779294).

The spelling of 1206523273 in words is "one billion, two hundred six million, five hundred twenty-three thousand, two hundred seventy-three".