159220231 has 2 divisors, whose sum is σ = 159220232. Its totient is φ = 159220230.

The previous prime is 159220223. The next prime is 159220241. The reversal of 159220231 is 132022951.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 159220231 - 2³ = 159220223 is a prime.

It is a super-2 number, since 2×159220231² = 50702163919386722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 159220196 and 159220205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (159220211) 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 as a sum of consecutive naturals, namely, 79610115 + 79610116.

It is an arithmetic number, because the mean of its divisors is an integer number (79610116).

Almost surely, 2^159220231 is an apocalyptic number.

159220231 is a deficient number, since it is larger than the sum of its proper divisors (1).

159220231 is an equidigital number, since it uses as much as digits as its factorization.

159220231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 159220231 is about 12618.2499182731. The cubic root of 159220231 is about 542.0001622617. Note that the first 3 decimals are identical.

The spelling of 159220231 in words is "one hundred fifty-nine million, two hundred twenty thousand, two hundred thirty-one".