1287240152 has 32 divisors (see below), whose sum is σ = 2659078800. Its totient is φ = 579312000.

The previous prime is 1287240137. The next prime is 1287240169. The reversal of 1287240152 is 2510427821.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 63527 + ... + 81302.

Almost surely, 2^1287240152 is an apocalyptic number.

It is an amenable number.

1287240152 is an abundant number, since it is smaller than the sum of its proper divisors (1371838648).

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

1287240152 is a wasteful number, since it uses less digits than its factorization.

1287240152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144947 (or 144943 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 32.

The square root of 1287240152 is about 35878.1291596984. The cubic root of 1287240152 is about 1087.8103651434.

Adding to 1287240152 its reverse (2510427821), we get a palindrome (3797667973).

The spelling of 1287240152 in words is "one billion, two hundred eighty-seven million, two hundred forty thousand, one hundred fifty-two".