159383491 has 4 divisors (see below), whose sum is σ = 166313232. Its totient is φ = 152453752.

The previous prime is 159383467. The next prime is 159383563. The reversal of 159383491 is 194383951.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 159383491 - 2¹⁷ = 159252419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (159383401) 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, 3464836 + ... + 3464881.

It is an arithmetic number, because the mean of its divisors is an integer number (41578308).

Almost surely, 2^159383491 is an apocalyptic number.

159383491 is a deficient number, since it is larger than the sum of its proper divisors (6929741).

159383491 is an equidigital number, since it uses as much as digits as its factorization.

159383491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6929740.

The product of its digits is 116640, while the sum is 43.

The square root of 159383491 is about 12624.7174621850. The cubic root of 159383491 is about 542.1853496154.

The spelling of 159383491 in words is "one hundred fifty-nine million, three hundred eighty-three thousand, four hundred ninety-one".