165130 has 24 divisors (see below), whose sum is σ = 346788. Its totient is φ = 56448.

The previous prime is 165103. The next prime is 165133. The reversal of 165130 is 31561.

It can be written as a sum of positive squares in 2 ways, for example, as 159201 + 5929 = 399^2 + 77^2 .

It is not an unprimeable number, because it can be changed into a prime (165133) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 322 + ... + 658.

2¹⁶⁵¹³⁰ is an apocalyptic number.

165130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

165130 is an abundant number, since it is smaller than the sum of its proper divisors (181658).

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

165130 is a wasteful number, since it uses less digits than its factorization.

165130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358 (or 351 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 165130 is about 406.3619076636. The cubic root of 165130 is about 54.8624662854.

Adding to 165130 its reverse (31561), we get a palindrome (196691).

It can be divided in two parts, 1651 and 30, that added together give a square (1681 = 41²).

The spelling of 165130 in words is "one hundred sixty-five thousand, one hundred thirty".