130681628 has 60 divisors (see below), whose sum is σ = 291281592. Its totient is φ = 50873760.

The previous prime is 130681597. The next prime is 130681657. The reversal of 130681628 is 826186031.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 105026 + ... + 106262.

Almost surely, 2^130681628 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 130681628, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145640796).

130681628 is an abundant number, since it is smaller than the sum of its proper divisors (160599964).

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

130681628 is a wasteful number, since it uses less digits than its factorization.

130681628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1280 (or 1257 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 130681628 is about 11431.6065362660. The cubic root of 130681628 is about 507.4635407815.

The spelling of 130681628 in words is "one hundred thirty million, six hundred eighty-one thousand, six hundred twenty-eight".