159568451 has 6 divisors (see below), whose sum is σ = 185620500. Its totient is φ = 136772916.

The previous prime is 159568429. The next prime is 159568471. The reversal of 159568451 is 154865951.

It is not a de Polignac number, because 159568451 - 2¹⁴ = 159552067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (159568471) 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 5 ways as a sum of consecutive naturals, for example, 1628201 + ... + 1628298.

It is an arithmetic number, because the mean of its divisors is an integer number (30936750).

Almost surely, 2^159568451 is an apocalyptic number.

159568451 is a deficient number, since it is larger than the sum of its proper divisors (26052049).

159568451 is an equidigital number, since it uses as much as digits as its factorization.

159568451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3256513 (or 3256506 counting only the distinct ones).

The product of its digits is 216000, while the sum is 44.

The square root of 159568451 is about 12632.0406506629. The cubic root of 159568451 is about 542.3949987556.

The spelling of 159568451 in words is "one hundred fifty-nine million, five hundred sixty-eight thousand, four hundred fifty-one".