1287248106 has 16 divisors (see below), whose sum is σ = 2577409344. Its totient is φ = 428597184.

The previous prime is 1287248089. The next prime is 1287248113. The reversal of 1287248106 is 6018427821.

It is a happy 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, 115615 + ... + 126258.

It is an arithmetic number, because the mean of its divisors is an integer number (161088084).

Almost surely, 2^1287248106 is an apocalyptic number.

1287248106 is an abundant number, since it is smaller than the sum of its proper divisors (1290161238).

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

1287248106 is a wasteful number, since it uses less digits than its factorization.

1287248106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242765.

The product of its (nonzero) digits is 43008, while the sum is 39.

The square root of 1287248106 is about 35878.2400070015. The cubic root of 1287248106 is about 1087.8126057058.

The spelling of 1287248106 in words is "one billion, two hundred eighty-seven million, two hundred forty-eight thousand, one hundred six".