188130 has 16 divisors (see below), whose sum is σ = 451584. Its totient is φ = 50160.

The previous prime is 188107. The next prime is 188137. The reversal of 188130 is 31881.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 188097 and 188106.

It is not an unprimeable number, because it can be changed into a prime (188137) by changing a digit.

188130 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 7 ways as a sum of consecutive naturals, for example, 3106 + ... + 3165.

It is an arithmetic number, because the mean of its divisors is an integer number (28224).

2¹⁸⁸¹³⁰ is an apocalyptic number.

188130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

188130 is an abundant number, since it is smaller than the sum of its proper divisors (263454).

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

188130 is a wasteful number, since it uses less digits than its factorization.

188130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6281.

The product of its (nonzero) digits is 192, while the sum is 21.

The square root of 188130 is about 433.7395531883. The cubic root of 188130 is about 57.2997444625.

The spelling of 188130 in words is "one hundred eighty-eight thousand, one hundred thirty".