159520194 has 12 divisors (see below), whose sum is σ = 345627126. Its totient is φ = 53173392.

The previous prime is 159520189. The next prime is 159520199. The reversal of 159520194 is 491025951.

It is an interprime number because it is at equal distance from previous prime (159520189) and next prime (159520199).

It can be written as a sum of positive squares in only one way, i.e., 113103225 + 46416969 = 10635^2 + 6813^2 .

It is not an unprimeable number, because it can be changed into a prime (159520199) 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, 4431099 + ... + 4431134.

Almost surely, 2^159520194 is an apocalyptic number.

159520194 is an abundant number, since it is smaller than the sum of its proper divisors (186106932).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

159520194 is a wasteful number, since it uses less digits than its factorization.

159520194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8862241 (or 8862238 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 36.

The square root of 159520194 is about 12630.1304031273. The cubic root of 159520194 is about 542.3403158608.

The spelling of 159520194 in words is "one hundred fifty-nine million, five hundred twenty thousand, one hundred ninety-four".