1209841233 has 8 divisors (see below), whose sum is σ = 1613325696. Its totient is φ = 806458800.

The previous prime is 1209841211. The next prime is 1209841267. The reversal of 1209841233 is 3321489021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1209841233 - 2⁸ = 1209840977 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1209841194 and 1209841203.

It is not an unprimeable number, because it can be changed into a prime (1209841333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8728 + ... + 49958.

It is an arithmetic number, because the mean of its divisors is an integer number (201665712).

Almost surely, 2^1209841233 is an apocalyptic number.

It is an amenable number.

1209841233 is a deficient number, since it is larger than the sum of its proper divisors (403484463).

1209841233 is an equidigital number, since it uses as much as digits as its factorization.

1209841233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51015.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 1209841233 is about 34782.7720718174. The cubic root of 1209841233 is about 1065.5556279869. Note that the first 3 decimals are identical.

The spelling of 1209841233 in words is "one billion, two hundred nine million, eight hundred forty-one thousand, two hundred thirty-three".