1284325133 has 36 divisors (see below), whose sum is σ = 1670295168. Its totient is φ = 983193120.

The previous prime is 1284325109. The next prime is 1284325169. The reversal of 1284325133 is 3315234821.

It is not a de Polignac number, because 1284325133 - 2⁶ = 1284325069 is a prime.

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 1284325133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1284325103) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 254210 + ... + 259212.

It is an arithmetic number, because the mean of its divisors is an integer number (46397088).

Almost surely, 2^1284325133 is an apocalyptic number.

1284325133 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1284325133 is a deficient number, since it is larger than the sum of its proper divisors (385970035).

1284325133 is a wasteful number, since it uses less digits than its factorization.

1284325133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5074 (or 5054 counting only the distinct ones).

The product of its digits is 17280, while the sum is 32.

The square root of 1284325133 is about 35837.4822357821. The cubic root of 1284325133 is about 1086.9886110691.

Adding to 1284325133 its reverse (3315234821), we get a palindrome (4599559954).

The spelling of 1284325133 in words is "one billion, two hundred eighty-four million, three hundred twenty-five thousand, one hundred thirty-three".