172130 has 16 divisors (see below), whose sum is σ = 354240. Its totient is φ = 58992.

The previous prime is 172127. The next prime is 172147. The reversal of 172130 is 31271.

Added to its reverse (31271) it gives a square (203401 = 451²).

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1160 + ... + 1299.

It is an arithmetic number, because the mean of its divisors is an integer number (22140).

2¹⁷²¹³⁰ is an apocalyptic number.

172130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

172130 is an abundant number, since it is smaller than the sum of its proper divisors (182110).

It is a weird number, because it is abundant, but not a pseudoperfect number.

172130 is a wasteful number, since it uses less digits than its factorization.

172130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2473.

The product of its (nonzero) digits is 42, while the sum is 14.

The square root of 172130 is about 414.8855263805. The cubic root of 172130 is about 55.6269851583.

Adding to 172130 its reverse (31271), we get a square (203401 = 451²).

The spelling of 172130 in words is "one hundred seventy-two thousand, one hundred thirty".