1287143324 has 6 divisors (see below), whose sum is σ = 2252500824. Its totient is φ = 643571660.

The previous prime is 1287143323. The next prime is 1287143357. The reversal of 1287143324 is 4233417821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1287143323) by changing a digit.

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 as a sum of consecutive naturals, namely, 160892912 + ... + 160892919.

It is an arithmetic number, because the mean of its divisors is an integer number (375416804).

Almost surely, 2^1287143324 is an apocalyptic number.

It is an amenable number.

1287143324 is a deficient number, since it is larger than the sum of its proper divisors (965357500).

1287143324 is a wasteful number, since it uses less digits than its factorization.

1287143324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321785835 (or 321785833 counting only the distinct ones).

The product of its digits is 32256, while the sum is 35.

The square root of 1287143324 is about 35876.7797328579. The cubic root of 1287143324 is about 1087.7830889217.

The spelling of 1287143324 in words is "one billion, two hundred eighty-seven million, one hundred forty-three thousand, three hundred twenty-four".