102081280 has 72 divisors (see below), whose sum is σ = 279472032. Its totient is φ = 34996224.

The previous prime is 102081271. The next prime is 102081283. The reversal of 102081280 is 82180201.

It is not an unprimeable number, because it can be changed into a prime (102081283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3264 + ... + 14656.

It is an arithmetic number, because the mean of its divisors is an integer number (3881556).

Almost surely, 2^102081280 is an apocalyptic number.

102081280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102081280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139736016).

102081280 is an abundant number, since it is smaller than the sum of its proper divisors (177390752).

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

102081280 is an equidigital number, since it uses as much as digits as its factorization.

102081280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11421 (or 11407 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 22.

The square root of 102081280 is about 10103.5280966601. The cubic root of 102081280 is about 467.3569467080.

The spelling of 102081280 in words is "one hundred two million, eighty-one thousand, two hundred eighty".