1226442983 has 4 divisors (see below), whose sum is σ = 1229645568. Its totient is φ = 1223240400.

The previous prime is 1226442979. The next prime is 1226442991. The reversal of 1226442983 is 3892446221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3892446221 = 1039 ⋅3746339.

It is a cyclic number.

It is not a de Polignac number, because 1226442983 - 2² = 1226442979 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1226442983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1226442383) 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 3 ways as a sum of consecutive naturals, for example, 1600718 + ... + 1601483.

It is an arithmetic number, because the mean of its divisors is an integer number (307411392).

Almost surely, 2^1226442983 is an apocalyptic number.

1226442983 is a deficient number, since it is larger than the sum of its proper divisors (3202585).

1226442983 is an equidigital number, since it uses as much as digits as its factorization.

1226442983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3202584.

The product of its digits is 165888, while the sum is 41.

The square root of 1226442983 is about 35020.6079758761. The cubic root of 1226442983 is about 1070.4074446201.

The spelling of 1226442983 in words is "one billion, two hundred twenty-six million, four hundred forty-two thousand, nine hundred eighty-three".