170222146 has 8 divisors (see below), whose sum is σ = 256276224. Its totient is φ = 84796740.

The previous prime is 170222137. The next prime is 170222153. The reversal of 170222146 is 641222071.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 170222146.

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, 156490 + ... + 157573.

It is an arithmetic number, because the mean of its divisors is an integer number (32034528).

Almost surely, 2^170222146 is an apocalyptic number.

170222146 is a deficient number, since it is larger than the sum of its proper divisors (86054078).

170222146 is a wasteful number, since it uses less digits than its factorization.

170222146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314336.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 170222146 is about 13046.9209394401. The cubic root of 170222146 is about 554.2070172992.

The spelling of 170222146 in words is "one hundred seventy million, two hundred twenty-two thousand, one hundred forty-six".