172045282 has 4 divisors (see below), whose sum is σ = 258067926. Its totient is φ = 86022640.

The previous prime is 172045243. The next prime is 172045297. The reversal of 172045282 is 282540271.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 282540271 = 13 ⋅21733867.

It can be written as a sum of positive squares in only one way, i.e., 126090441 + 45954841 = 11229^2 + 6779^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43011319 + ... + 43011322.

Almost surely, 2^172045282 is an apocalyptic number.

172045282 is a deficient number, since it is larger than the sum of its proper divisors (86022644).

172045282 is an equidigital number, since it uses as much as digits as its factorization.

172045282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86022643.

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 172045282 is about 13116.6032950608. The cubic root of 172045282 is about 556.1785759912.

The spelling of 172045282 in words is "one hundred seventy-two million, forty-five thousand, two hundred eighty-two".