1283261403 has 16 divisors (see below), whose sum is σ = 1731906176. Its totient is φ = 845095680.

The previous prime is 1283261401. The next prime is 1283261411. The reversal of 1283261403 is 3041623821.

It is not a de Polignac number, because 1283261403 - 2¹ = 1283261401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1283261401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 162300 + ... + 170022.

It is an arithmetic number, because the mean of its divisors is an integer number (108244136).

Almost surely, 2^1283261403 is an apocalyptic number.

1283261403 is a deficient number, since it is larger than the sum of its proper divisors (448644773).

1283261403 is an equidigital number, since it uses as much as digits as its factorization.

1283261403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8394.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 1283261403 is about 35822.6381356817. The cubic root of 1283261403 is about 1086.6884322090.

The spelling of 1283261403 in words is "one billion, two hundred eighty-three million, two hundred sixty-one thousand, four hundred three".