161368 has 16 divisors (see below), whose sum is σ = 316080. Its totient is φ = 77088.

The previous prime is 161363. The next prime is 161377. The reversal of 161368 is 863161.

161368 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255 + ... + 622.

It is an arithmetic number, because the mean of its divisors is an integer number (19755).

2¹⁶¹³⁶⁸ is an apocalyptic number.

It is an amenable number.

161368 is a deficient number, since it is larger than the sum of its proper divisors (154712).

161368 is a wasteful number, since it uses less digits than its factorization.

161368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 906 (or 902 counting only the distinct ones).

The product of its digits is 864, while the sum is 25.

The square root of 161368 is about 401.7063604177. The cubic root of 161368 is about 54.4426352616.

It can be divided in two parts, 1613 and 68, that added together give a square (1681 = 41²).

The spelling of 161368 in words is "one hundred sixty-one thousand, three hundred sixty-eight".