130238568 has 24 divisors (see below), whose sum is σ = 352729650. Its totient is φ = 43412832.

The previous prime is 130238561. The next prime is 130238573. The reversal of 130238568 is 865832031.

It can be written as a sum of positive squares in only one way, i.e., 107371044 + 22867524 = 10362^2 + 4782^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (130238561) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 904363 + ... + 904506.

Almost surely, 2^130238568 is an apocalyptic number.

130238568 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

130238568 is an abundant number, since it is smaller than the sum of its proper divisors (222491082).

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

130238568 is a wasteful number, since it uses less digits than its factorization.

130238568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1808881 (or 1808874 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 130238568 is about 11412.2113545097. The cubic root of 130238568 is about 506.8893938430.

The spelling of 130238568 in words is "one hundred thirty million, two hundred thirty-eight thousand, five hundred sixty-eight".