161310 has 32 divisors (see below), whose sum is σ = 408960. Its totient is φ = 40608.

The previous prime is 161309. The next prime is 161323. The reversal of 161310 is 13161.

It is a super-2 number, since 2×161310² = 52041832200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 429 + ... + 711.

It is an arithmetic number, because the mean of its divisors is an integer number (12780).

2¹⁶¹³¹⁰ is an apocalyptic number.

161310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 161310, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (204480).

161310 is an abundant number, since it is smaller than the sum of its proper divisors (247650).

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

161310 is a wasteful number, since it uses less digits than its factorization.

161310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 161310 is about 401.6341618936. The cubic root of 161310 is about 54.4361117641.

Adding to 161310 its reverse (13161), we get a palindrome (174471).

It can be divided in two parts, 16 and 1310, that added together give a triangular number (1326 = T₅₁).

The spelling of 161310 in words is "one hundred sixty-one thousand, three hundred ten".