130621708 has 24 divisors (see below), whose sum is σ = 261676800. Its totient is φ = 55887888.

The previous prime is 130621703. The next prime is 130621723. The reversal of 130621708 is 807126031.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (130621703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14913 + ... + 21991.

It is an arithmetic number, because the mean of its divisors is an integer number (10903200).

Almost surely, 2^130621708 is an apocalyptic number.

It is an amenable number.

130621708 is an abundant number, since it is smaller than the sum of its proper divisors (131055092).

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

130621708 is a wasteful number, since it uses less digits than its factorization.

130621708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7749 (or 7747 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 130621708 is about 11428.9854317870. The cubic root of 130621708 is about 507.3859683779.

Adding to 130621708 its reverse (807126031), we get a palindrome (937747739).

The spelling of 130621708 in words is "one hundred thirty million, six hundred twenty-one thousand, seven hundred eight".