130642 has 8 divisors (see below), whose sum is σ = 198576. Its totient is φ = 64452.

The previous prime is 130639. The next prime is 130643. The reversal of 130642 is 246031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (130643) 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 3 ways as a sum of consecutive naturals, for example, 228 + ... + 559.

It is an arithmetic number, because the mean of its divisors is an integer number (24822).

2¹³⁰⁶⁴² is an apocalyptic number.

130642 is a deficient number, since it is larger than the sum of its proper divisors (67934).

130642 is an equidigital number, since it uses as much as digits as its factorization.

130642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 872.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 130642 is about 361.4443248967. Note that the first 3 decimals coincide. The cubic root of 130642 is about 50.7412241048.

Adding to 130642 its reverse (246031), we get a palindrome (376673).

The spelling of 130642 in words is "one hundred thirty thousand, six hundred forty-two".