130840 has 16 divisors (see below), whose sum is σ = 294480. Its totient is φ = 52320.

The previous prime is 130829. The next prime is 130841. The reversal of 130840 is 48031.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130841) by changing a digit.

130840 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 3 ways as a sum of consecutive naturals, for example, 1596 + ... + 1675.

It is an arithmetic number, because the mean of its divisors is an integer number (18405).

2¹³⁰⁸⁴⁰ is an apocalyptic number.

130840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130840 is an abundant number, since it is smaller than the sum of its proper divisors (163640).

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

130840 is a wasteful number, since it uses less digits than its factorization.

130840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3282 (or 3278 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 130840 is about 361.7181222997. The cubic root of 130840 is about 50.7668455002.

Adding to 130840 its reverse (48031), we get a palindrome (178871).

The spelling of 130840 in words is "one hundred thirty thousand, eight hundred forty".