102882487009 has 9 divisors (see below), whose sum is σ = 105750445017. Its totient is φ = 100090332144.

The previous prime is 102882486997. The next prime is 102882487027. The reversal of 102882487009 is 900784288201.

The square root of 102882487009 is 320753.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 15578784225 + 87303702784 = 124815^2 + 295472^2 .

It is a de Polignac number, because none of the positive numbers 2^k-102882487009 is a prime.

It is a super-2 number, since 2×102882487009² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102882487039) 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 8 ways as a sum of consecutive naturals, for example, 11863527 + ... + 11872195.

Almost surely, 2^102882487009 is an apocalyptic number.

102882487009 is the 320753-rd square number.

102882487009 is the 160377-th centered octagonal number.

It is an amenable number.

102882487009 is a deficient number, since it is larger than the sum of its proper divisors (2867958008).

102882487009 is an frugal number, since it uses more digits than its factorization.

102882487009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17412 (or 8706 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 49.

Multiplying 102882487009 by its sum of digits (49), we get a square (5041241863441 = 2245271²).

The spelling of 102882487009 in words is "one hundred two billion, eight hundred eighty-two million, four hundred eighty-seven thousand, nine".