1225334665 has 8 divisors (see below), whose sum is σ = 1504597248. Its totient is φ = 957470640.

The previous prime is 1225334657. The next prime is 1225334689. The reversal of 1225334665 is 5664335221.

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

It is not a de Polignac number, because 1225334665 - 2³ = 1225334657 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 2849401 + ... + 2849830.

It is an arithmetic number, because the mean of its divisors is an integer number (188074656).

Almost surely, 2^1225334665 is an apocalyptic number.

It is an amenable number.

1225334665 is a deficient number, since it is larger than the sum of its proper divisors (279262583).

1225334665 is an equidigital number, since it uses as much as digits as its factorization.

1225334665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5699279.

The product of its digits is 129600, while the sum is 37.

The square root of 1225334665 is about 35004.7806020835. The cubic root of 1225334665 is about 1070.0849104306.

Adding to 1225334665 its reverse (5664335221), we get a palindrome (6889669886).

The spelling of 1225334665 in words is "one billion, two hundred twenty-five million, three hundred thirty-four thousand, six hundred sixty-five".