160979581 has 8 divisors (see below), whose sum is σ = 184255424. Its totient is φ = 137773440.

The previous prime is 160979531. The next prime is 160979591. The reversal of 160979581 is 185979061.

It is a happy number.

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

It is not a de Polignac number, because 160979581 - 2¹¹ = 160977533 is a prime.

It is a super-2 number, since 2×160979581² = 51828850997871122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (160979501) 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, 12375 + ... + 21796.

It is an arithmetic number, because the mean of its divisors is an integer number (23031928).

Almost surely, 2^160979581 is an apocalyptic number.

It is an amenable number.

160979581 is a deficient number, since it is larger than the sum of its proper divisors (23275843).

160979581 is an equidigital number, since it uses as much as digits as its factorization.

160979581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34851.

The product of its (nonzero) digits is 136080, while the sum is 46.

The square root of 160979581 is about 12687.7728936169. The cubic root of 160979581 is about 543.9891832570.

The spelling of 160979581 in words is "one hundred sixty million, nine hundred seventy-nine thousand, five hundred eighty-one".