171996082 has 4 divisors (see below), whose sum is σ = 257994126. Its totient is φ = 85998040.

The previous prime is 171996067. The next prime is 171996131. The reversal of 171996082 is 280699171.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 280699171 = 3623 ⋅77477.

It can be written as a sum of positive squares in only one way, i.e., 118135161 + 53860921 = 10869^2 + 7339^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42999019 + ... + 42999022.

Almost surely, 2^171996082 is an apocalyptic number.

171996082 is a deficient number, since it is larger than the sum of its proper divisors (85998044).

171996082 is an equidigital number, since it uses as much as digits as its factorization.

171996082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85998043.

The product of its (nonzero) digits is 54432, while the sum is 43.

The square root of 171996082 is about 13114.7276754037. The cubic root of 171996082 is about 556.1255539137.

The spelling of 171996082 in words is "one hundred seventy-one million, nine hundred ninety-six thousand, eighty-two".