1272285463 has 2 divisors, whose sum is σ = 1272285464. Its totient is φ = 1272285462.

The previous prime is 1272285409. The next prime is 1272285541. The reversal of 1272285463 is 3645822721.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1272285463 - 2¹⁷ = 1272154391 is a prime.

It is a super-2 number, since 2×1272285463² = 3237420598722248738, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1272280463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 636142731 + 636142732.

It is an arithmetic number, because the mean of its divisors is an integer number (636142732).

Almost surely, 2^1272285463 is an apocalyptic number.

1272285463 is a deficient number, since it is larger than the sum of its proper divisors (1).

1272285463 is an equidigital number, since it uses as much as digits as its factorization.

1272285463 is an evil number, because the sum of its binary digits is even.

The product of its digits is 161280, while the sum is 40.

The square root of 1272285463 is about 35669.1107682824. The cubic root of 1272285463 is about 1083.5813501946.

The spelling of 1272285463 in words is "one billion, two hundred seventy-two million, two hundred eighty-five thousand, four hundred sixty-three".