1227740453 has 2 divisors, whose sum is σ = 1227740454. Its totient is φ = 1227740452.

The previous prime is 1227740387. The next prime is 1227740467. The reversal of 1227740453 is 3540477221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1222061764 + 5678689 = 34958^2 + 2383^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1227740453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1227740053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 613870226 + 613870227.

It is an arithmetic number, because the mean of its divisors is an integer number (613870227).

Almost surely, 2^1227740453 is an apocalyptic number.

It is an amenable number.

1227740453 is a deficient number, since it is larger than the sum of its proper divisors (1).

1227740453 is an equidigital number, since it uses as much as digits as its factorization.

1227740453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47040, while the sum is 35.

The square root of 1227740453 is about 35039.1274577436. The cubic root of 1227740453 is about 1070.7847775803.

The spelling of 1227740453 in words is "one billion, two hundred twenty-seven million, seven hundred forty thousand, four hundred fifty-three".