1297280463 has 8 divisors (see below), whose sum is σ = 1739706288. Its totient is φ = 859854144.

The previous prime is 1297280419. The next prime is 1297280497. The reversal of 1297280463 is 3640827921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1297280463 - 2⁶ = 1297280399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1297280363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1249270 + ... + 1250307.

It is an arithmetic number, because the mean of its divisors is an integer number (217463286).

Almost surely, 2^1297280463 is an apocalyptic number.

1297280463 is a deficient number, since it is larger than the sum of its proper divisors (442425825).

1297280463 is a wasteful number, since it uses less digits than its factorization.

1297280463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2499753.

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 1297280463 is about 36017.7798177511. The cubic root of 1297280463 is about 1090.6313047454.

The spelling of 1297280463 in words is "one billion, two hundred ninety-seven million, two hundred eighty thousand, four hundred sixty-three".