1228445683 has 4 divisors (see below), whose sum is σ = 1228561488. Its totient is φ = 1228329880.

The previous prime is 1228445677. The next prime is 1228445689. The reversal of 1228445683 is 3865448221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1228445677) and next prime (1228445689).

It is a cyclic number.

It is not a de Polignac number, because 1228445683 - 2⁵ = 1228445651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1228445689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40183 + ... + 63808.

It is an arithmetic number, because the mean of its divisors is an integer number (307140372).

Almost surely, 2^1228445683 is an apocalyptic number.

1228445683 is a deficient number, since it is larger than the sum of its proper divisors (115805).

1228445683 is a wasteful number, since it uses less digits than its factorization.

1228445683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115804.

The product of its digits is 368640, while the sum is 43.

The square root of 1228445683 is about 35049.1894770764. The cubic root of 1228445683 is about 1070.9897625465.

The spelling of 1228445683 in words is "one billion, two hundred twenty-eight million, four hundred forty-five thousand, six hundred eighty-three".