171361216 has 28 divisors (see below), whose sum is σ = 366203992. Its totient is φ = 79089408.

The previous prime is 171361213. The next prime is 171361217. The reversal of 171361216 is 612163171.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171361213) 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, 102150 + ... + 103813.

It is an arithmetic number, because the mean of its divisors is an integer number (13078714).

Almost surely, 2^171361216 is an apocalyptic number.

171361216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

171361216 is an abundant number, since it is smaller than the sum of its proper divisors (194842776).

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

171361216 is a wasteful number, since it uses less digits than its factorization.

171361216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205988 (or 205978 counting only the distinct ones).

The product of its digits is 1512, while the sum is 28.

The square root of 171361216 is about 13090.5009835376. The cubic root of 171361216 is about 555.4404598074.

The spelling of 171361216 in words is "one hundred seventy-one million, three hundred sixty-one thousand, two hundred sixteen".