159496491 has 48 divisors (see below), whose sum is σ = 274929408. Its totient is φ = 79900800.

The previous prime is 159496487. The next prime is 159496501. The reversal of 159496491 is 194694951.

It is a happy number.

It is not a de Polignac number, because 159496491 - 2² = 159496487 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 159496491.

It is not an unprimeable number, because it can be changed into a prime (159496471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 193861 + ... + 194681.

It is an arithmetic number, because the mean of its divisors is an integer number (5727696).

Almost surely, 2^159496491 is an apocalyptic number.

159496491 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

159496491 is a deficient number, since it is larger than the sum of its proper divisors (115432917).

159496491 is a wasteful number, since it uses less digits than its factorization.

159496491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 900 (or 871 counting only the distinct ones).

The product of its digits is 349920, while the sum is 48.

The square root of 159496491 is about 12629.1920169107. The cubic root of 159496491 is about 542.3134525341.

The spelling of 159496491 in words is "one hundred fifty-nine million, four hundred ninety-six thousand, four hundred ninety-one".