160820149 has 4 divisors (see below), whose sum is σ = 183794464. Its totient is φ = 137845836.

The previous prime is 160820141. The next prime is 160820159. The reversal of 160820149 is 941028061.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 160820149 - 2³ = 160820141 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 160820149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (160820141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11487147 + ... + 11487160.

It is an arithmetic number, because the mean of its divisors is an integer number (45948616).

Almost surely, 2^160820149 is an apocalyptic number.

It is an amenable number.

160820149 is a deficient number, since it is larger than the sum of its proper divisors (22974315).

160820149 is an equidigital number, since it uses as much as digits as its factorization.

160820149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22974314.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 160820149 is about 12681.4884378767. The cubic root of 160820149 is about 543.8095374276.

The spelling of 160820149 in words is "one hundred sixty million, eight hundred twenty thousand, one hundred forty-nine".