1280497025 has 12 divisors (see below), whose sum is σ = 1606949232. Its totient is φ = 1012053840.

The previous prime is 1280497019. The next prime is 1280497037. The reversal of 1280497025 is 5207940821.

It is not a de Polignac number, because 1280497025 - 2⁶ = 1280496961 is a prime.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1280497025.

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 306479 + ... + 310628.

It is an arithmetic number, because the mean of its divisors is an integer number (133912436).

Almost surely, 2^1280497025 is an apocalyptic number.

It is an amenable number.

1280497025 is a deficient number, since it is larger than the sum of its proper divisors (326452207).

1280497025 is an equidigital number, since it uses as much as digits as its factorization.

1280497025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617200 (or 617195 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 1280497025 is about 35784.0331013708. The cubic root of 1280497025 is about 1085.9075631828.

The spelling of 1280497025 in words is "one billion, two hundred eighty million, four hundred ninety-seven thousand, twenty-five".