130808 has 16 divisors (see below), whose sum is σ = 249480. Its totient is φ = 64288.
The previous prime is 130807. The next prime is 130811. The reversal of 130808 is 808031.
It is a super-2 number, since 2×1308082 = 34221465728, which contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 130808.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (130807) by changing a digit.
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 3 ways as a sum of consecutive naturals, for example, 566 + ... + 762.
2130808 is an apocalyptic number.
It is an amenable number.
130808 is a deficient number, since it is larger than the sum of its proper divisors (118672).
130808 is a wasteful number, since it uses less digits than its factorization.
130808 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 286 (or 282 counting only the distinct ones).
The product of its (nonzero) digits is 192, while the sum is 20.
The square root of 130808 is about 361.6738862567. The cubic root of 130808 is about 50.7627064207.
Adding to 130808 its reverse (808031), we get a palindrome (938839).
The spelling of 130808 in words is "one hundred thirty thousand, eight hundred eight".
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