1285361152 has 40 divisors (see below), whose sum is σ = 2630894112. Its totient is φ = 626995200.

The previous prime is 1285361131. The next prime is 1285361179. The reversal of 1285361152 is 2511635821.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9624 + ... + 51607.

Almost surely, 2^1285361152 is an apocalyptic number.

It is an amenable number.

1285361152 is an abundant number, since it is smaller than the sum of its proper divisors (1345532960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1285361152 is an frugal number, since it uses more digits than its factorization.

1285361152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61290 (or 61274 counting only the distinct ones).

The product of its digits is 14400, while the sum is 34.

The square root of 1285361152 is about 35851.9337274853. The cubic root of 1285361152 is about 1087.2808107504.

Adding to 1285361152 its reverse (2511635821), we get a palindrome (3796996973).

The spelling of 1285361152 in words is "one billion, two hundred eighty-five million, three hundred sixty-one thousand, one hundred fifty-two".