1223914837 has 2 divisors, whose sum is σ = 1223914838. Its totient is φ = 1223914836.

The previous prime is 1223914831. The next prime is 1223914843. The reversal of 1223914837 is 7384193221.

It is a balanced prime because it is at equal distance from previous prime (1223914831) and next prime (1223914843).

It can be written as a sum of positive squares in only one way, i.e., 1060739761 + 163175076 = 32569^2 + 12774^2 .

It is an emirp because it is prime and its reverse (7384193221) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1223914837 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1223914837.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1223914831) 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 as a sum of consecutive naturals, namely, 611957418 + 611957419.

It is an arithmetic number, because the mean of its divisors is an integer number (611957419).

Almost surely, 2^1223914837 is an apocalyptic number.

It is an amenable number.

1223914837 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223914837 is an equidigital number, since it uses as much as digits as its factorization.

1223914837 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 40.

The square root of 1223914837 is about 34984.4942367329. The cubic root of 1223914837 is about 1069.6714387014.

The spelling of 1223914837 in words is "one billion, two hundred twenty-three million, nine hundred fourteen thousand, eight hundred thirty-seven".