159318469 has 2 divisors, whose sum is σ = 159318470. Its totient is φ = 159318468.

The previous prime is 159318463. The next prime is 159318473. The reversal of 159318469 is 964813951.

159318469 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 157201444 + 2117025 = 12538^2 + 1455^2 .

It is an emirp because it is prime and its reverse (964813951) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 159318469 - 2¹⁷ = 159187397 is a prime.

It is a super-2 number, since 2×159318469² = 50764749129007922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (159318463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79659234 + 79659235.

It is an arithmetic number, because the mean of its divisors is an integer number (79659235).

Almost surely, 2^159318469 is an apocalyptic number.

It is an amenable number.

159318469 is a deficient number, since it is larger than the sum of its proper divisors (1).

159318469 is an equidigital number, since it uses as much as digits as its factorization.

159318469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 233280, while the sum is 46.

The square root of 159318469 is about 12622.1420131450. The cubic root of 159318469 is about 542.1116097093. Note that the first 3 decimals are identical.

The spelling of 159318469 in words is "one hundred fifty-nine million, three hundred eighteen thousand, four hundred sixty-nine".