1280525130 has 48 divisors (see below), whose sum is σ = 3363711624. Its totient is φ = 337950720.

The previous prime is 1280525117. The next prime is 1280525143. The reversal of 1280525130 is 315250821.

It is a happy number.

1280525130 is a `hidden beast` number, since 1 + 2 + 8 + 0 + 525 + 130 = 666.

It is an interprime number because it is at equal distance from previous prime (1280525117) and next prime (1280525143).

It can be written as a sum of positive squares in 4 ways, for example, as 1082475801 + 198049329 = 32901^2 + 14073^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1280525094 and 1280525103.

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 23 ways as a sum of consecutive naturals, for example, 64611 + ... + 82070.

Almost surely, 2^1280525130 is an apocalyptic number.

1280525130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1280525130 is an abundant number, since it is smaller than the sum of its proper divisors (2083186494).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1280525130 is a wasteful number, since it uses less digits than its factorization.

1280525130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146791 (or 146788 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 1280525130 is about 35784.4258022956. The cubic root of 1280525130 is about 1085.9155078085.

Adding to 1280525130 its reverse (315250821), we get a palindrome (1595775951).

The spelling of 1280525130 in words is "one billion, two hundred eighty million, five hundred twenty-five thousand, one hundred thirty".