171243396 has 45 divisors (see below), whose sum is σ = 448280679. Its totient is φ = 57002616.

The previous prime is 171243383. The next prime is 171243427. The reversal of 171243396 is 693342171.

The square root of 171243396 is 13086.

It is a perfect power (a square), and thus also a powerful number.

171243396 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×171243396² = 58648601347225632, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 171243396.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 235185 + ... + 235911.

Almost surely, 2^171243396 is an apocalyptic number.

171243396 is the 13086-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 171243396

171243396 is an abundant number, since it is smaller than the sum of its proper divisors (277037283).

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

171243396 is an frugal number, since it uses more digits than its factorization.

171243396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1470 (or 732 counting only the distinct ones).

The product of its digits is 27216, while the sum is 36.

The cubic root of 171243396 is about 555.3131322815.

Multiplying 171243396 by its sum of digits (36), we get a square (6164762256 = 78516²).

171243396 divided by its sum of digits (36) gives a square (4756761 = 2181²).

The spelling of 171243396 in words is "one hundred seventy-one million, two hundred forty-three thousand, three hundred ninety-six".