1288280131 has 2 divisors, whose sum is σ = 1288280132. Its totient is φ = 1288280130.

The previous prime is 1288280099. The next prime is 1288280153. The reversal of 1288280131 is 1310828821.

It is a strong prime.

It is an emirp because it is prime and its reverse (1310828821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1288280131 - 2⁵ = 1288280099 is a prime.

It is a super-2 number, since 2×1288280131² = 3319331391858754322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1288280831) by changing a digit.

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 as a sum of consecutive naturals, namely, 644140065 + 644140066.

It is an arithmetic number, because the mean of its divisors is an integer number (644140066).

Almost surely, 2^1288280131 is an apocalyptic number.

1288280131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1288280131 is an equidigital number, since it uses as much as digits as its factorization.

1288280131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6144, while the sum is 34.

The square root of 1288280131 is about 35892.6194502435. The cubic root of 1288280131 is about 1088.1032385973.

The spelling of 1288280131 in words is "one billion, two hundred eighty-eight million, two hundred eighty thousand, one hundred thirty-one".