1226618383 has 2 divisors, whose sum is σ = 1226618384. Its totient is φ = 1226618382.

The previous prime is 1226618377. The next prime is 1226618389. The reversal of 1226618383 is 3838166221.

It is a balanced prime because it is at equal distance from previous prime (1226618377) and next prime (1226618389).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1226618383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1226618389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 613309191 + 613309192.

It is an arithmetic number, because the mean of its divisors is an integer number (613309192).

Almost surely, 2^1226618383 is an apocalyptic number.

1226618383 is a deficient number, since it is larger than the sum of its proper divisors (1).

1226618383 is an equidigital number, since it uses as much as digits as its factorization.

1226618383 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 82944, while the sum is 40.

The square root of 1226618383 is about 35023.1121261375. The cubic root of 1226618383 is about 1070.4584703693.

It can be divided in two parts, 122661 and 8383, that added together give a square (131044 = 362²).

The spelling of 1226618383 in words is "one billion, two hundred twenty-six million, six hundred eighteen thousand, three hundred eighty-three".