130081280 has 240 divisors, whose sum is σ = 390450456. Its totient is φ = 41287680.

The previous prime is 130081249. The next prime is 130081313. The reversal of 130081280 is 82180031.

It can be written as a sum of positive squares in 4 ways, for example, as 86415616 + 43665664 = 9296^2 + 6608^2 .

It is a super-2 number, since 2×130081280² = 33842278812876800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2132450 + ... + 2132510.

Almost surely, 2^130081280 is an apocalyptic number.

130081280 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 130081280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195225228).

130081280 is an abundant number, since it is smaller than the sum of its proper divisors (260369176).

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

130081280 is an equidigital number, since it uses as much as digits as its factorization.

130081280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115 (or 92 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 130081280 is about 11405.3180578185. The cubic root of 130081280 is about 506.6852563201.

The spelling of 130081280 in words is "one hundred thirty million, eighty-one thousand, two hundred eighty".