1275493057 has 2 divisors, whose sum is σ = 1275493058. Its totient is φ = 1275493056.

The previous prime is 1275493031. The next prime is 1275493069. The reversal of 1275493057 is 7503945721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1273133761 + 2359296 = 35681^2 + 1536^2 .

It is a cyclic number.

It is not a de Polignac number, because 1275493057 - 2¹⁹ = 1274968769 is a prime.

It is not a weakly prime, because it can be changed into another prime (1275493657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 637746528 + 637746529.

It is an arithmetic number, because the mean of its divisors is an integer number (637746529).

Almost surely, 2^1275493057 is an apocalyptic number.

It is an amenable number.

1275493057 is a deficient number, since it is larger than the sum of its proper divisors (1).

1275493057 is an equidigital number, since it uses as much as digits as its factorization.

1275493057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 264600, while the sum is 43.

The square root of 1275493057 is about 35714.0456543361. The cubic root of 1275493057 is about 1084.4912016227.

The spelling of 1275493057 in words is "one billion, two hundred seventy-five million, four hundred ninety-three thousand, fifty-seven".