1226366137 has 2 divisors, whose sum is σ = 1226366138. Its totient is φ = 1226366136.

The previous prime is 1226366083. The next prime is 1226366177. The reversal of 1226366137 is 7316636221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1222481296 + 3884841 = 34964^2 + 1971^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1226366137 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1226366096 and 1226366105.

It is not a weakly prime, because it can be changed into another prime (1226366177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 613183068 + 613183069.

It is an arithmetic number, because the mean of its divisors is an integer number (613183069).

Almost surely, 2^1226366137 is an apocalyptic number.

It is an amenable number.

1226366137 is a deficient number, since it is larger than the sum of its proper divisors (1).

1226366137 is an equidigital number, since it uses as much as digits as its factorization.

1226366137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 37.

The square root of 1226366137 is about 35019.5108046929. The cubic root of 1226366137 is about 1070.3850877584.

It can be divided in two parts, 12263 and 66137, that added together give a square (78400 = 280²).

The spelling of 1226366137 in words is "one billion, two hundred twenty-six million, three hundred sixty-six thousand, one hundred thirty-seven".