1285255153 has 12 divisors (see below), whose sum is σ = 1610100660. Its totient is φ = 1016904672.

The previous prime is 1285255151. The next prime is 1285255207. The reversal of 1285255153 is 3515525821.

It can be written as a sum of positive squares in 2 ways, for example, as 303560929 + 981694224 = 17423^2 + 31332^2 .

It is not a de Polignac number, because 1285255153 - 2¹ = 1285255151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1285255151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1008198 + ... + 1009471.

It is an arithmetic number, because the mean of its divisors is an integer number (134175055).

Almost surely, 2^1285255153 is an apocalyptic number.

1285255153 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1285255153 is a deficient number, since it is larger than the sum of its proper divisors (324845507).

1285255153 is a wasteful number, since it uses less digits than its factorization.

1285255153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2017696 (or 2017689 counting only the distinct ones).

The product of its digits is 60000, while the sum is 37.

The square root of 1285255153 is about 35850.4554085440. The cubic root of 1285255153 is about 1087.2509219142.

The spelling of 1285255153 in words is "one billion, two hundred eighty-five million, two hundred fifty-five thousand, one hundred fifty-three".