1273882481 has 2 divisors, whose sum is σ = 1273882482. Its totient is φ = 1273882480.

The previous prime is 1273882469. The next prime is 1273882487. The reversal of 1273882481 is 1842883721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1261386256 + 12496225 = 35516^2 + 3535^2 .

It is a cyclic number.

It is not a de Polignac number, because 1273882481 - 2²² = 1269688177 is a prime.

It is a super-2 number, since 2×1273882481² = 3245553150797430722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1273882487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 636941240 + 636941241.

It is an arithmetic number, because the mean of its divisors is an integer number (636941241).

Almost surely, 2^1273882481 is an apocalyptic number.

It is an amenable number.

1273882481 is a deficient number, since it is larger than the sum of its proper divisors (1).

1273882481 is an equidigital number, since it uses as much as digits as its factorization.

1273882481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 172032, while the sum is 44.

The square root of 1273882481 is about 35691.4903163205. The cubic root of 1273882481 is about 1084.0345439194.

The spelling of 1273882481 in words is "one billion, two hundred seventy-three million, eight hundred eighty-two thousand, four hundred eighty-one".