159092221 has 4 divisors (see below), whose sum is σ = 159173344. Its totient is φ = 159011100.

The previous prime is 159092203. The next prime is 159092251. The reversal of 159092221 is 122290951.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 159092221 - 2⁵ = 159092189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159092251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37545 + ... + 41566.

It is an arithmetic number, because the mean of its divisors is an integer number (39793336).

Almost surely, 2^159092221 is an apocalyptic number.

It is an amenable number.

159092221 is a deficient number, since it is larger than the sum of its proper divisors (81123).

159092221 is an equidigital number, since it uses as much as digits as its factorization.

159092221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81122.

The product of its (nonzero) digits is 3240, while the sum is 31.

The square root of 159092221 is about 12613.1764833447. The cubic root of 159092221 is about 541.8548707528.

The spelling of 159092221 in words is "one hundred fifty-nine million, ninety-two thousand, two hundred twenty-one".