130178 has 4 divisors (see below), whose sum is σ = 195270. Its totient is φ = 65088.

The previous prime is 130171. The next prime is 130183. The reversal of 130178 is 871031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 871031 = 7 ⋅124433.

It can be written as a sum of positive squares in only one way, i.e., 69169 + 61009 = 263^2 + 247^2 .

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (130171) by changing a digit.

130178 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32543 + ... + 32546.

2¹³⁰¹⁷⁸ is an apocalyptic number.

130178 is a deficient number, since it is larger than the sum of its proper divisors (65092).

130178 is an equidigital number, since it uses as much as digits as its factorization.

130178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65091.

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 130178 is about 360.8018846957. The cubic root of 130178 is about 50.6810804636.

The spelling of 130178 in words is "one hundred thirty thousand, one hundred seventy-eight".