1227251873 has 2 divisors, whose sum is σ = 1227251874. Its totient is φ = 1227251872.

The previous prime is 1227251849. The next prime is 1227251897. The reversal of 1227251873 is 3781527221.

It is a balanced prime because it is at equal distance from previous prime (1227251849) and next prime (1227251897).

It can be written as a sum of positive squares in only one way, i.e., 1164652129 + 62599744 = 34127^2 + 7912^2 .

It is a cyclic number.

It is not a de Polignac number, because 1227251873 - 2²⁶ = 1160143009 is a prime.

It is a super-2 number, since 2×1227251873² = 3012294319564016258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1227251833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 613625936 + 613625937.

It is an arithmetic number, because the mean of its divisors is an integer number (613625937).

Almost surely, 2^1227251873 is an apocalyptic number.

It is an amenable number.

1227251873 is a deficient number, since it is larger than the sum of its proper divisors (1).

1227251873 is an equidigital number, since it uses as much as digits as its factorization.

1227251873 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 47040, while the sum is 38.

The square root of 1227251873 is about 35032.1548438003. The cubic root of 1227251873 is about 1070.6427189342.

The spelling of 1227251873 in words is "one billion, two hundred twenty-seven million, two hundred fifty-one thousand, eight hundred seventy-three".