159904499 has 4 divisors (see below), whose sum is σ = 169310664. Its totient is φ = 150498336.

The previous prime is 159904483. The next prime is 159904531. The reversal of 159904499 is 994409951.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 994409951 = 17 ⋅58494703.

It is a cyclic number.

It is not a de Polignac number, because 159904499 - 2⁴ = 159904483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (159904429) 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, 4703057 + ... + 4703090.

It is an arithmetic number, because the mean of its divisors is an integer number (42327666).

Almost surely, 2^159904499 is an apocalyptic number.

159904499 is a deficient number, since it is larger than the sum of its proper divisors (9406165).

159904499 is an equidigital number, since it uses as much as digits as its factorization.

159904499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9406164.

The product of its (nonzero) digits is 524880, while the sum is 50.

The square root of 159904499 is about 12645.3350687121. The cubic root of 159904499 is about 542.7754894897.

The spelling of 159904499 in words is "one hundred fifty-nine million, nine hundred four thousand, four hundred ninety-nine".