160994905 has 8 divisors (see below), whose sum is σ = 197906184. Its totient is φ = 125654400.

The previous prime is 160994861. The next prime is 160994929. The reversal of 160994905 is 509499061.

It can be written as a sum of positive squares in 4 ways, for example, as 22202944 + 138791961 = 4712^2 + 11781^2 .

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

It is not a de Polignac number, because 160994905 - 2¹³ = 160986713 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 392466 + ... + 392875.

It is an arithmetic number, because the mean of its divisors is an integer number (24738273).

Almost surely, 2^160994905 is an apocalyptic number.

It is an amenable number.

160994905 is a deficient number, since it is larger than the sum of its proper divisors (36911279).

160994905 is an equidigital number, since it uses as much as digits as its factorization.

160994905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 785387.

The product of its (nonzero) digits is 87480, while the sum is 43.

The square root of 160994905 is about 12688.3767677351. The cubic root of 160994905 is about 544.0064438845.

The spelling of 160994905 in words is "one hundred sixty million, nine hundred ninety-four thousand, nine hundred five".