159488531 has 4 divisors (see below), whose sum is σ = 162881952. Its totient is φ = 156095112.

The previous prime is 159488513. The next prime is 159488551. The reversal of 159488531 is 135884951.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 135884951 = 53 ⋅2563867.

It is a cyclic number.

It is not a de Polignac number, because 159488531 - 2¹⁴ = 159472147 is a prime.

It is a super-2 number, since 2×159488531² = 50873183041075922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (159488551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1696640 + ... + 1696733.

It is an arithmetic number, because the mean of its divisors is an integer number (40720488).

Almost surely, 2^159488531 is an apocalyptic number.

159488531 is a deficient number, since it is larger than the sum of its proper divisors (3393421).

159488531 is an equidigital number, since it uses as much as digits as its factorization.

159488531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3393420.

The product of its digits is 172800, while the sum is 44.

The square root of 159488531 is about 12628.8768700942. The cubic root of 159488531 is about 542.3044306284.

The spelling of 159488531 in words is "one hundred fifty-nine million, four hundred eighty-eight thousand, five hundred thirty-one".