1230227689 has 4 divisors (see below), whose sum is σ = 1263477124. Its totient is φ = 1196978256.

The previous prime is 1230227633. The next prime is 1230227707. The reversal of 1230227689 is 9867220321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9867220321 = 7 ⋅1409602903.

It can be written as a sum of positive squares in 2 ways, for example, as 940955625 + 289272064 = 30675^2 + 17008^2 .

It is a cyclic number.

It is not a de Polignac number, because 1230227689 - 2⁹ = 1230227177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1230227629) 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, 16624662 + ... + 16624735.

It is an arithmetic number, because the mean of its divisors is an integer number (315869281).

Almost surely, 2^1230227689 is an apocalyptic number.

It is an amenable number.

1230227689 is a deficient number, since it is larger than the sum of its proper divisors (33249435).

1230227689 is an equidigital number, since it uses as much as digits as its factorization.

1230227689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33249434.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 1230227689 is about 35074.6017653800. The cubic root of 1230227689 is about 1071.5073781839.

The spelling of 1230227689 in words is "one billion, two hundred thirty million, two hundred twenty-seven thousand, six hundred eighty-nine".