161313 has 8 divisors (see below), whose sum is σ = 227808. Its totient is φ = 101184.

The previous prime is 161309. The next prime is 161323. The reversal of 161313 is 313161.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 161313 - 2² = 161309 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 161292 and 161301.

It is not an unprimeable number, because it can be changed into a prime (161303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1531 + ... + 1632.

It is an arithmetic number, because the mean of its divisors is an integer number (28476).

2¹⁶¹³¹³ is an apocalyptic number.

It is an amenable number.

161313 is a deficient number, since it is larger than the sum of its proper divisors (66495).

161313 is a wasteful number, since it uses less digits than its factorization.

161313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3183.

The product of its digits is 54, while the sum is 15.

The square root of 161313 is about 401.6378966183. The cubic root of 161313 is about 54.4364492247.

Adding to 161313 its reverse (313161), we get a palindrome (474474).

It can be divided in two parts, 161 and 313, that added together give a palindrome (474).

The spelling of 161313 in words is "one hundred sixty-one thousand, three hundred thirteen".