1282528133 has 8 divisors (see below), whose sum is σ = 1291909752. Its totient is φ = 1273162176.

The previous prime is 1282528123. The next prime is 1282528147. The reversal of 1282528133 is 3318252821.

It can be written as a sum of positive squares in 4 ways, for example, as 386884 + 1282141249 = 622^2 + 35807^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1282528133 - 2⁶ = 1282528069 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1282528093 and 1282528102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1282528123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197291 + ... + 203687.

It is an arithmetic number, because the mean of its divisors is an integer number (161488719).

Almost surely, 2^1282528133 is an apocalyptic number.

It is an amenable number.

1282528133 is a deficient number, since it is larger than the sum of its proper divisors (9381619).

1282528133 is a wasteful number, since it uses less digits than its factorization.

1282528133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7831.

The product of its digits is 23040, while the sum is 35.

The square root of 1282528133 is about 35812.4019440193. The cubic root of 1282528133 is about 1086.4814107748.

The spelling of 1282528133 in words is "one billion, two hundred eighty-two million, five hundred twenty-eight thousand, one hundred thirty-three".