170994961 has 8 divisors (see below), whose sum is σ = 175633920. Its totient is φ = 166386192.

The previous prime is 170994937. The next prime is 170994979. The reversal of 170994961 is 169499071.

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 170994961 - 2⁷ = 170994833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (170994911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4176 + ... + 18958.

It is an arithmetic number, because the mean of its divisors is an integer number (21954240).

Almost surely, 2^170994961 is an apocalyptic number.

It is an amenable number.

170994961 is a deficient number, since it is larger than the sum of its proper divisors (4638959).

170994961 is a wasteful number, since it uses less digits than its factorization.

170994961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15095.

The product of its (nonzero) digits is 122472, while the sum is 46.

The square root of 170994961 is about 13076.5041582221. The cubic root of 170994961 is about 555.0444581976.

The spelling of 170994961 in words is "one hundred seventy million, nine hundred ninety-four thousand, nine hundred sixty-one".