162170245 has 4 divisors (see below), whose sum is σ = 194604300. Its totient is φ = 129736192.

The previous prime is 162170231. The next prime is 162170251. The reversal of 162170245 is 542071261.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 542071261 = 14717 ⋅36833.

It can be written as a sum of positive squares in 2 ways, for example, as 129004164 + 33166081 = 11358^2 + 5759^2 .

It is a cyclic number.

It is not a de Polignac number, because 162170245 - 2¹¹ = 162168197 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16217020 + ... + 16217029.

It is an arithmetic number, because the mean of its divisors is an integer number (48651075).

Almost surely, 2^162170245 is an apocalyptic number.

It is an amenable number.

162170245 is a deficient number, since it is larger than the sum of its proper divisors (32434055).

162170245 is an equidigital number, since it uses as much as digits as its factorization.

162170245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32434054.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 162170245 is about 12734.6081604422. The cubic root of 162170245 is about 545.3270713013.

The spelling of 162170245 in words is "one hundred sixty-two million, one hundred seventy thousand, two hundred forty-five".