170442147 has 8 divisors (see below), whose sum is σ = 228121344. Its totient is φ = 113195528.

The previous prime is 170442109. The next prime is 170442157. The reversal of 170442147 is 741244071.

170442147 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 170442147 - 2¹⁰ = 170441123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (170442157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107223 + ... + 108800.

It is an arithmetic number, because the mean of its divisors is an integer number (28515168).

Almost surely, 2^170442147 is an apocalyptic number.

170442147 is a deficient number, since it is larger than the sum of its proper divisors (57679197).

170442147 is a wasteful number, since it uses less digits than its factorization.

170442147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216289.

The product of its (nonzero) digits is 6272, while the sum is 30.

The square root of 170442147 is about 13055.3493633836. The cubic root of 170442147 is about 554.4456732974.

It can be divided in two parts, 17044 and 2147, that added together give a palindrome (19191).

The spelling of 170442147 in words is "one hundred seventy million, four hundred forty-two thousand, one hundred forty-seven".