160989401 has 8 divisors (see below), whose sum is σ = 162195264. Its totient is φ = 159788560.

The previous prime is 160989379. The next prime is 160989407. The reversal of 160989401 is 104989061.

160989401 = 153² + 154² + ... + 786².

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-160989401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (160989407) 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, 82406 + ... + 84336.

It is an arithmetic number, because the mean of its divisors is an integer number (20274408).

Almost surely, 2^160989401 is an apocalyptic number.

It is an amenable number.

160989401 is a deficient number, since it is larger than the sum of its proper divisors (1205863).

160989401 is a wasteful number, since it uses less digits than its factorization.

160989401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2511.

The product of its (nonzero) digits is 15552, while the sum is 38.

The square root of 160989401 is about 12688.1598744656. The cubic root of 160989401 is about 544.0002444221. Note that the first 3 decimals are identical.

The spelling of 160989401 in words is "one hundred sixty million, nine hundred eighty-nine thousand, four hundred one".