160499731 has 4 divisors (see below), whose sum is σ = 183428272. Its totient is φ = 137571192.

The previous prime is 160499719. The next prime is 160499749. The reversal of 160499731 is 137994061.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 137994061 = 3877 ⋅35593.

It is a cyclic number.

It is not a de Polignac number, because 160499731 - 2¹⁹ = 159975443 is a prime.

It is a super-2 number, since 2×160499731² = 51520327302144722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (160499701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11464260 + ... + 11464273.

It is an arithmetic number, because the mean of its divisors is an integer number (45857068).

Almost surely, 2^160499731 is an apocalyptic number.

160499731 is a deficient number, since it is larger than the sum of its proper divisors (22928541).

160499731 is an equidigital number, since it uses as much as digits as its factorization.

160499731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22928540.

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 160499731 is about 12668.8488427323. The cubic root of 160499731 is about 543.4481353344.

The spelling of 160499731 in words is "one hundred sixty million, four hundred ninety-nine thousand, seven hundred thirty-one".