1227625493 has 2 divisors, whose sum is σ = 1227625494. Its totient is φ = 1227625492.

The previous prime is 1227625409. The next prime is 1227625499. The reversal of 1227625493 is 3945267221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1226190289 + 1435204 = 35017^2 + 1198^2 .

It is a cyclic number.

It is not a de Polignac number, because 1227625493 - 2⁸ = 1227625237 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1227625493.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1227625499) 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, 613812746 + 613812747.

It is an arithmetic number, because the mean of its divisors is an integer number (613812747).

Almost surely, 2^1227625493 is an apocalyptic number.

It is an amenable number.

1227625493 is a deficient number, since it is larger than the sum of its proper divisors (1).

1227625493 is an equidigital number, since it uses as much as digits as its factorization.

1227625493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 41.

The square root of 1227625493 is about 35037.4869675324. The cubic root of 1227625493 is about 1070.7513554076.

The spelling of 1227625493 in words is "one billion, two hundred twenty-seven million, six hundred twenty-five thousand, four hundred ninety-three".