159466491 has 6 divisors (see below), whose sum is σ = 230340500. Its totient is φ = 106310988.

The previous prime is 159466481. The next prime is 159466523. The reversal of 159466491 is 194664951.

It is a happy number.

159466491 is a `hidden beast` number, since 15 + 94 + 66 + 491 = 666.

159466491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 159466491 - 2¹⁸ = 159204347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (159466421) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8859241 + ... + 8859258.

Almost surely, 2^159466491 is an apocalyptic number.

159466491 is a deficient number, since it is larger than the sum of its proper divisors (70874009).

159466491 is a wasteful number, since it uses less digits than its factorization.

159466491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17718505 (or 17718502 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 159466491 is about 12628.0042366163. The cubic root of 159466491 is about 542.2794488106.

The spelling of 159466491 in words is "one hundred fifty-nine million, four hundred sixty-six thousand, four hundred ninety-one".